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<front>
<journal-meta>
<journal-id>0001-6365</journal-id>
<journal-title><![CDATA[Acta Odontológica Venezolana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta odontol. venez]]></abbrev-journal-title>
<issn>0001-6365</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Odontología -UCV]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0001-63652002000300013</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tumor Odontogénico Escamoso: Aspectos clínicos, radiográficos e histológicos Revisión de la Literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Squamous Odontogenic Tumour: Clinical, radiographic and histological aspects - Review of the literature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[Ana Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad del Estado de Campinas la Universidad del Zulia Facultad de Odontologia de Piracicaba]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad del Estado de Campinas Facultad de Odontologia de Piracicaba ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad de Santo Amaro Facultad de Odontologia ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Universidad del Estado de Campinas Facultad de Odontologia de Piracicaba ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2002</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2002</year>
</pub-date>
<volume>40</volume>
<numero>3</numero>
<fpage>310</fpage>
<lpage>314</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_arttext&amp;pid=S0001-63652002000300013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_abstract&amp;pid=S0001-63652002000300013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_pdf&amp;pid=S0001-63652002000300013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El tumor odontogénico escamoso (TOE) es una neoplasia benigna rara, que se origina probablemente de los restos epiteliales de Malassez en el ligamento periodontal. La lesión generalmente es asintomática y puede estar asociada a movilidad y sensibilidad a la percusión y palpación de los dientes asociados. Afecta por igual ambos maxilares; radiográficamente, se presenta como una área radiolúcida unilocular triangular o semicircular asociada a las raíces de los dientes afectados. Su diagnóstico diferencial varia desde una enfermedad periodontal hasta lesiones más agresivas como ameloblastoma y carcinoma de células escamosas. A pesar de ser una neoplasia poco común, el odontólogo debe considerarla en las hipótesis diagnósticas, de manera que se establezca un diagnóstico definitivo y un plan de tratamiento precoz, posibilitando intervenciones más conservadoras, lo que irá a mejorar el pronóstico del paciente. Con el objetivo de contribuir a la mejor comprensión de esta entidad y alertar al clínico de la existencia del TOE, este trabajo se propone realizar consideraciones en relación a la naturaleza benigna de esta lesión, su comportamiento biológico y sus características clínicas, histológicas y radiográficas, las cuales permiten realizar un diagnóstico adecuado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Squamous odontogenic tumour is a rare benign neoplasia that is probably originated from the cell rests of Malassez, in the periodontal ligament. Asymptomatic, in the majority of the cases, it can be associated with dental mobility and sensibility to percussion and palpation. It appears in equal frequency in maxilla and mandible. Radiographically, the most common image is a triangular or circular radiolucent area associated with the roots of involved teeth, being possible to present a multilocular image. The diferencial diagnosis can be a periodontal disease or injuries more aggressive like ameloblastoma and squamous cell carcinoma. Although to be a rare disease, the dentist must consider the TOE in the diagnostic hypotheses, to establish a definitive diagnosis as soon as possible, and perform more conservatives intervetions, that will improve the patient’s prognostic. In order to contribute to the best understanding of this entity and to alert the clinicians, in special the radiologists, of the existence of the TOE, this paper makes some considerations about the benign nature of this injury, its biological behavior and its histologics, clinical and radiographics aspects.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor odontogénico escamoso]]></kwd>
<kwd lng="es"><![CDATA[tumores odontogénicos]]></kwd>
<kwd lng="es"><![CDATA[neoplasia benigna]]></kwd>
<kwd lng="en"><![CDATA[Squamous odontogenic tumour]]></kwd>
<kwd lng="en"><![CDATA[odontogenics tumour]]></kwd>
<kwd lng="en"><![CDATA[benign neoplasia]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[   <B>    <P ALIGN="CENTER"><font size="4">Tumor Odontogénico Escamoso:</font><span style="font-size:14.0pt"><o:p> </o:p> </span></P>     <P ALIGN="CENTER"><FONT SIZE=4 face="Times New Roman">Aspectos cl&iacute;nicos, radiogr&aacute;ficos e histol&oacute;gicos&nbsp;</FONT></P>     <P ALIGN="CENTER"><FONT SIZE=4 face="Times New Roman">Revisi&oacute;n de la Literatura</FONT></P> </B><FONT SIZE=3>    <P ALIGN="CENTER"><font face="Times New Roman">Squamous Odontogenic Tumour:</font> </P>     <P ALIGN="CENTER"><font face="Times New Roman">Clinical, radiographic and histological aspects – Review of&nbsp; the literature</font></P> </FONT> <FONT SIZE=3>    <P ALIGN="JUSTIFY"><font face="Times New Roman"><b>Ortega, Ana Isabel.</b></font></FONT><font face="Times New Roman"> </font><FONT SIZE=3><font face="Times New Roman">Residente de Maestr&iacute;a en Radiologia Odontol&oacute;gica. Facultad de Odontolog&iacute;a de Piracicaba de la Universidad del Estado de Campinas, S&atilde;o Paulo – Brasil. Profesor Asistente de la Facultad de Odontolog&iacute;a de la Universidad del Zulia.</font></FONT></P>    <P ALIGN="JUSTIFY"><b><font face="Times New Roman"><FONT SIZE=3>Casanova, Marcia Leal Spinelli.</FONT></font></b> <FONT SIZE=3><font face="Times New Roman">Residente de Maestr&iacute;a en Radiologia Odontol&oacute;gica. Facultad de Odontolog&iacute;a de Piracicaba de la Universidad del Estado de Campinas, S&atilde;o Paulo – Brasil.</font></P>      <P ALIGN="JUSTIFY"><b><font face="Times New Roman">Freitas, Le&ocirc;nidas de.</font></b></FONT> <FONT SIZE=3><font face="Times New Roman">Profesor Titular de la Facultad de Odontolog&iacute;a de la Universidad de Santo Amaro, S&atilde;o Paulo – Brasil.</font></P>      <P ALIGN="JUSTIFY"><b><font face="Times New Roman">Haiter Neto, Francisco.</font></b></FONT> <FONT SIZE=3><font face="Times New Roman">Profesor Asociado y Libre Docente de la Facultad de Odontolog&iacute;a de Piracicaba de la&nbsp; Universidad del Estado de Campinas, S&atilde;o Paulo – Brasil.</font></P>     ]]></body>
<body><![CDATA[<P ALIGN="JUSTIFY"><b><font face="Times New Roman">RESUMEN</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El tumor odontog&eacute;nico escamoso (TOE) es una neoplasia benigna rara, que se origina probablemente de los restos epiteliales de Malassez en el ligamento periodontal. La lesi&oacute;n generalmente es asintom&aacute;tica y puede estar asociada a movilidad y sensibilidad a la percusi&oacute;n y palpaci&oacute;n de los dientes asociados. Afecta por igual ambos maxilares; radiogr&aacute;ficamente, se presenta como una &aacute;rea radiol&uacute;cida unilocular triangular o semicircular asociada a las ra&iacute;ces de los dientes afectados. Su diagn&oacute;stico diferencial&nbsp; varia desde una enfermedad periodontal hasta lesiones m&aacute;s agresivas como ameloblastoma y carcinoma de c&eacute;lulas escamosas. A pesar de ser una neoplasia poco com&uacute;n, el odont&oacute;logo debe considerarla en las hip&oacute;tesis diagn&oacute;sticas, de manera que se establezca un diagn&oacute;stico definitivo y un plan de tratamiento precoz, posibilitando intervenciones m&aacute;s conservadoras, lo que ir&aacute; a mejorar el pron&oacute;stico del paciente. Con el objetivo de contribuir a la mejor comprensi&oacute;n de esta entidad y alertar al cl&iacute;nico de la&nbsp; existencia del TOE, este trabajo se propone realizar consideraciones en relaci&oacute;n a la naturaleza benigna de esta lesi&oacute;n, su comportamiento biol&oacute;gico y sus caracter&iacute;sticas cl&iacute;nicas, histol&oacute;gicas y radiogr&aacute;ficas, las cuales permiten realizar un diagn&oacute;stico adecuado.</font></P> <I>    <P ALIGN="JUSTIFY"><font face="Times New Roman"><b>Palabras claves</b></font></I><font face="Times New Roman"><b>:</b> Tumor odontog&eacute;nico escamoso, tumores odontog&eacute;nicos, neoplasia benigna.</font></P>      <P><b><font face="Times New Roman">ABSTRACT</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Squamous odontogenic tumour is a rare benign neoplasia that is probably originated from the cell rests of Malassez, in the periodontal ligament. Asymptomatic, in the majority of the cases, it can be associated with dental mobility and sensibility to percussion and palpation. It appears in equal frequency in maxilla and mandible. Radiographically, the most common image is a triangular or circular radiolucent area associated with the roots of involved teeth, being possible to present a multilocular image. The diferencial diagnosis can be a periodontal disease or injuries more aggressive like ameloblastoma and squamous cell carcinoma. Although to be a rare disease, the dentist must consider the TOE in the diagnostic hypotheses, to&nbsp; establish a definitive diagnosis as soon as possible, and perform more conservatives intervetions, that will improve the patient’s prognostic. In order&nbsp; to contribute to the best understanding of this entity and to alert the clinicians, in special the radiologists, of the existence of the TOE, this paper makes some considerations about the benign nature of this injury, its biological behavior and its histologics, clinical and radiographics aspects.</font></P> <I>    <P><font face="Times New Roman"><b>Key-words</b></font></I><font face="Times New Roman">: Squamous odontogenic tumour, odontogenics tumour, benign neoplasia.&nbsp;&nbsp;</font></P>    <P ALIGN="JUSTIFY"><font face="Times New Roman"><I>Recibido para arbitraje: 21/01/02&nbsp;</I> <I>Aceptado para publicaci&oacute;n18/02/02 </I></font></P>     <P><font face="Times New Roman"><b>INTRODUCCI&Oacute;N</b></font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Los tumores odontog&eacute;nicos son lesiones derivadas de elementos epiteliales, mesenquimales o ambos, intr&iacute;nsecamente relacionados con la formaci&oacute;n de los dientes. No se conocen&nbsp; las etiolog&iacute;as y patogenias, as&iacute; como las causas y est&iacute;mulos que los originan.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Cl&iacute;nicamente la gran mayor&iacute;a de esas lesiones son asintom&aacute;ticas, pero pueden producir expansi&oacute;n de las corticales maxilares, movilidad dent&aacute;ria y p&eacute;rdida &oacute;sea. Histol&oacute;gicamente, los tumores odontog&eacute;nicos son semejantes a la c&eacute;lula y al tejido que los originan y pueden simular tejidos blandos del &oacute;rgano del&nbsp; esmalte y la pulpa dent&aacute;ria, o contener elementos duros como esmalte, dentina, cemento o una mezcla de todos.</font> </P>     ]]></body>
<body><![CDATA[<P ALIGN="JUSTIFY"><font face="Times New Roman">El TOE fue descrito como una entidad patol&oacute;gica definida en 1992 por la Organizaci&oacute;n Mundial de la&nbsp; Salud (OMS)<SUP>1</SUP>, la cual lo clasific&oacute;&nbsp; como una neoplasia benigna localmente invasiva, constituida por&nbsp; islas de epitelio escamoso bien diferenciado, dentro de un estroma de tejido conjuntivo fibroso; ocasionalmente las islas epiteliales presentan focos de degeneraci&oacute;n c&iacute;stica central. El tumor fue realmente descrito por primera vez en 1975 por Pullon &amp; cols<I>.</I><SUP>2</SUP>, a trav&eacute;s del reporte de seis casos de una lesi&oacute;n bucal con aspecto radiogr&aacute;fico radiol&uacute;cido de destrucci&oacute;n &oacute;sea adyacente a las ra&iacute;ces dent&aacute;rias. Antes de esta descripci&oacute;n, esta neoplasia era conocida como ameloblastoma acantomatoso, fibroma amelobl&aacute;stico o tumor odontog&eacute;nico epitelial.</font><SUP><font face="Times New Roman">4</font></P> </SUP>    <P ALIGN="JUSTIFY"><font face="Times New Roman">Desde entonces fueron reportados en la literatura 45 casos <a href="#t1">(Tabla 1)</a>, de los cuales 36 son aceptados como TOE, conforme la revisi&oacute;n de la literatura realizada por Philipsen y Reichart <SUP>3</SUP>, debido a que presentaban las caracter&iacute;sticas cl&iacute;nicas, histol&oacute;gicas y radiogr&aacute;ficas similares a aquellas se&ntilde;aladas por Pullon &amp; cols<I>.</I><SUP>2</SUP>, siendo que tres casos fueron considerados ameloblastomas <SUP>4,5,6</SUP>, dos ya hab&iacute;an sido reportados por otros autores <SUP>7,8</SUP>, mientras que dos publicados en idioma portugu&eacute;s no fueron evaluados e incluidos dentro de este grupo <SUP>9,10</SUP> , los casos de Kusama &amp; cols<I>.</I><SUP>11</SUP>&nbsp; y de Ide &amp; cols <SUP>12</SUP> fueron publicados posteriormente.</font> </P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Con el objetivo de contribuir a la mejor comprensi&oacute;n de esta entidad, en relaci&oacute;n a su naturaleza benigna y su comportamiento biol&oacute;gico, este trabajo se propone comentar, basado en una amplia revisi&oacute;n de la literatura, las caracter&iacute;sticas histol&oacute;gicas, cl&iacute;nicas y radiogr&aacute;ficas, las cuales permiten realizar un diagn&oacute;stico definitivo adecuado.</font></P>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">PATOG&Eacute;NESIS</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El TOE probablemente tiene origen odontog&eacute;nico debido al hecho de no constatarse la presencia del ligamento periodontal entre el tumor y las ra&iacute;ces dent&aacute;rias, lo que sugiere que la neoplasia se origina de los restos epiteliales de Malassez presentes en el ligamento periodontal, o en la&nbsp; membrana mucosa adyacente <SUP>2</SUP>, cuando se trata de la variante perif&eacute;rica. Algunos autores sugieren tambi&eacute;n un posible origen del tumor a partir de los restos de Serres <SUP>5,13,14</SUP> . En relaci&oacute;n a esta divergencia de opiniones, Loyola &amp; cols<I>.</I><SUP>10</SUP> exponen que tanto los restos de Serres como los de Malassez son, embriol&oacute;gicamente, originarios de la l&aacute;mina dent&aacute;ria, y por tanto el TOE puede desarrollarse a partir de ambos elementos.</font> </P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Cuando la lesi&oacute;n se relaciona con dientes incluidos el origen del tumor parece ser la proliferaci&oacute;n de restos epiteliales del fol&iacute;culo dent&aacute;rio.</font><SUP><font face="Times New Roman">15</font></P> </SUP>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">CARACTER&Iacute;STICAS CL&Iacute;NICAS</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El TOE es una lesi&oacute;n benigna que afecta el proceso alveolar y se asocia a las ra&iacute;ces de los dientes erupcionados <SUP>16</SUP> , que puede ser localmente invasiva <SUP>17</SUP> y extenderse entre las estructuras vecinas, como los senos maxilares, paladar, fosas nasales y los carrillos <SUP>18</SUP>.&nbsp; Tiene una leve predilecci&oacute;n por el sexo masculino, sin distinci&oacute;n por raza, afectando individuos entre los 8 y 74 a&ntilde;os, con una edad promedio de 38 a&ntilde;os. Se localiza con frecuencia similar en ambos maxilares, las lesiones en la maxila tienen predilecci&oacute;n por la regi&oacute;n anterior y estas se comportan m&aacute;s agresivamente que las lesiones mandibulares, las cuales aparecen frecuentemente en la regi&oacute;n posterior.</font><SUP><font face="Times New Roman">3,19</font></P> </SUP>    <P ALIGN="JUSTIFY"><font face="Times New Roman">Cl&iacute;nicamente, el tumor es en general asintom&aacute;tico, siendo asociado a movilidad y sensibilidad a la percusi&oacute;n de los dientes afectados <SUP>13</SUP> , y a una inflamaci&oacute;n indolora cubierta por mucosa bucal de aspecto normal, la cual puede representar la variante perif&eacute;rica del TOE.<SUP>19</SUP> Cuando la lesi&oacute;n presenta un crecimiento expresivo&nbsp; puede haber ulceraci&oacute;n superficial.</font></P>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">CARACTER&Iacute;STICAS RADIOGR&Aacute;FICAS</font></b></P>     ]]></body>
<body><![CDATA[<P ALIGN="JUSTIFY"><font face="Times New Roman">A pesar que las caracter&iacute;sticas radiogr&aacute;ficas del tumor no son patognom&oacute;nicas <SUP>18,19</SUP>, la lesi&oacute;n aparece en general, como una radioluscencia triangular o semicircular en el hueso alveolar <a href="#f1">(Fig. 1)</a>, con la porci&oacute;n m&aacute;s estrecha orientada en direcci&oacute;n a la cresta alveolar <SUP>21,22</SUP>, semej&aacute;ndose algunas veces con un defecto periodontal. </font> <SUP><font face="Times New Roman">2, 23</font></P> </SUP></FONT>    <P ALIGN="CENTER"><font face="Times New Roman"><a name="f1"></a><IMG SRC="/img/fbpe/aov/v40n3/art13img1.jpg" width="420" height="312" align="center"></font></P> <B><FONT SIZE=3>    
<P align="center"><font face="Times New Roman">Figura 1</font> </FONT></B> <FONT SIZE=3><font face="Times New Roman"> – TOE: aspecto radiogr&aacute;fico en el proceso alveolar&nbsp; Fuente: Goldblatt, 1982&nbsp;</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Puede presentarse como una lesi&oacute;n unilocular o multilocular,<SUP>24</SUP> con bordes difusos o m&aacute;rgenes definidas radiopacas, asoci&aacute;ndose a las ra&iacute;ces de los&nbsp; dientes afectados, pudiendo causar desplazamiento <SUP>3,11,24</SUP> y reabsorci&oacute;n radicular externa <SUP>10</SUP>, tambi&eacute;n se asocia&nbsp; a dientes incluidos.</font><SUP><font face="Times New Roman">11,15,18,25</font></P> </SUP>    <P ALIGN="JUSTIFY"><font face="Times New Roman">El TOE puede asumir proporciones mayores, extendi&eacute;ndose para el cuerpo mandibular y el maxilar, provocando expansi&oacute;n de las corticales <SUP>18</SUP> y comprometiendo las estructuras adyacentes como el seno maxilar y los tejidos blandos.<SUP>15,23</SUP> </font> </P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">En relaci&oacute;n a la variante perif&eacute;rica del&nbsp; TOE, esta produce generalmente una reabsorci&oacute;n en el reborde alveolar en forma de &quot;copa&quot;, como&nbsp; respuesta &oacute;sea a un fen&oacute;meno de presi&oacute;n y no de infiltraci&oacute;n verdadera de la masa tumoral.</font><SUP><font face="Times New Roman">20</font></P> </SUP>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">CARACTER&Iacute;STICAS HISTOL&Oacute;GICAS</font></b> </P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El cuadro histopatol&oacute;gico, seg&uacute;n Loyola &amp; cols<I>.</I><SUP>10</SUP>, es bastante caracter&iacute;stico.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">A trav&eacute;s de la microscopia &oacute;ptica, el TOE revela numerosas islas de epitelio escamoso benigno de formato irregular y tama&ntilde;os variables, con &aacute;reas focales de queratinizaci&oacute;n y calcificaci&oacute;n, dentro de un estroma de tejido conjuntivo fibroso maduro. Tambi&eacute;n se observan &aacute;reas focales de degeneraci&oacute;n c&iacute;stica y una capa simple de c&eacute;lulas cuboides aplanadas en la perif&eacute;ria de las islas epiteliales <SUP>2 </SUP><a href="#f2">(Fig 2)</a>.</font> </P> </FONT>    <P ALIGN="CENTER"><font face="Times New Roman"><a name="f2"></a><IMG SRC="/img/fbpe/aov/v40n3/art13img2.jpg" width="506" height="328" align="center"></font></P> <B><FONT SIZE=3>    
]]></body>
<body><![CDATA[<P align="center"><font face="Times New Roman">Figura 2</font> </FONT></B> <font face="Times New Roman"><FONT SIZE=3> – Aspecto histol&oacute;gico </FONT></font> <font face="Times New Roman"><FONT SIZE=3>a- isla epitelial; a’ - capa externa de c&eacute;lulas cuboides aplanadas; b – tejido conjuntivo. </FONT></font> <FONT SIZE=3><font face="Times New Roman">Fuente: Sapp, 1997</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El tejido conjuntivo del TOE est&aacute; compuesto por fibras col&aacute;genas maduras con un n&uacute;mero variable de fibroblastos, fibrocitos y peque&ntilde;os vasos sangu&iacute;neos. Algunas veces puede presentar un grado moderado de infiltrado inflamatorio cr&oacute;nico cuando est&aacute; infectado secund&aacute;riamente.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El microscopio electr&oacute;nico confirma la organizaci&oacute;n de las islas epiteliales, con abundantes desmosomas, espacios intercelulares irregulares y algunas &aacute;reas de edema intercelular.</font><SUP><font face="Times New Roman">26</font></P> </SUP>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">DIAGN&Oacute;STICO DIFERENCIAL CL&Iacute;NICO Y RADIOGR&Aacute;FICO</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El TOE puede tener como diagn&oacute;stico diferencial varias lesiones, siendo necesaria una investigaci&oacute;n mas profunda con la finalidad de llegar a un diagn&oacute;stico definitivo.</font></P>     <P><font face="Times New Roman">Debido a la p&eacute;rdida &oacute;sea severa asociada a movilidad dent&aacute;ria y bolsas periodontales profundas, algunos autores como Pullon &amp; cols. <SUP>2</SUP>, McNeill &amp; cols<I>.</I> <SUP>24</SUP> y Swan &amp; McDaniel <SUP>5</SUP> consideran que el tumor puede simular una enfermedad periodontal <a href="#f3">(Fig. 3)</a>. El TOE inclusive puede&nbsp; confundirse con lesiones como granuloma perif&eacute;rico de c&eacute;lulas gigantes, granuloma piog&eacute;nico y tumor odontog&eacute;nico perif&eacute;rico, cuando se trata de la variante perif&eacute;rica.<SUP>27,28</SUP>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font> </P> </FONT>    <P ALIGN="CENTER"><font face="Times New Roman"><a name="f3"></a><IMG SRC="/img/fbpe/aov/v40n3/art13img3.jpg" width="532" height="334" align="center"></font></P> <B><FONT SIZE=3>    
<P align="center"><font face="Times New Roman">Figura 3</font> </FONT></B> <FONT SIZE=3><font face="Times New Roman"> – Diagn&oacute;stico diferencial con enfermedad periodontal Fuente: Propia</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">El diagn&oacute;stico diferencial del TOE tambi&eacute;n puede ser de quiste dent&iacute;gero, ya que ambas&nbsp; lesiones presentan una imagen radiogr&aacute;fica asociada a un diente incluido.<SUP>2,11</SUP> El TOE tambi&eacute;n presenta diagn&oacute;stico diferencial con lesiones m&aacute;s graves como el ameloblastoma <SUP>3 </SUP>(<a href="#f4">Figuras 4a</a> y <a href="#f4">4b</a>).</font></P> </FONT>    <P ALIGN="CENTER"><font face="Times New Roman"><a name="f4"></a><IMG SRC="/img/fbpe/aov/v40n3/art13img4.jpg" width="478" height="318" align="center"></font></P> <B><FONT SIZE=3>    
]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font face="Times New Roman">Figura 4</font></FONT></B> <FONT SIZE=3><font face="Times New Roman"> - Diagn&oacute;stico diferencial: a = TOE;&nbsp; b = Ameloblastoma unicistico</font></P>     <P ALIGN="CENTER">&nbsp;</P>     <P><b><font face="Times New Roman">DIAGN&Oacute;STICO DIFERENCIAL HISTOL&Oacute;GICO</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Las caracter&iacute;sticas histol&oacute;gicas del tumor en la microscopia &oacute;ptica, deben servir para distinguirlo de lesiones con apariencia similar, principalmente del ameloblastoma acantomatoso, del cual se diferencia por la ausencia de c&eacute;lulas cil&iacute;ndricas con polarizaci&oacute;n invertida en la perif&eacute;ria de las islas epiteliales, ausencia de c&eacute;lulas semejantes al ret&iacute;culo estrellado, y la presencia de calcificaciones dentro de las islas epiteliales del TOE. </font> <SUP><font face="Times New Roman">16</font></P> </SUP>    <P ALIGN="JUSTIFY"><font face="Times New Roman">Algunas veces, se observan durante el examen histol&oacute;gico, proliferaci&oacute;n de islas de epitelio escamoso en las paredes de quistes odontog&eacute;nicos que se asemejan al TOE, las cuales son denominadas &quot;Proliferaciones tipo TOE&quot;, sin embargo ambas entidades difieren cl&iacute;nica y radiogr&aacute;ficamente entre si. </font> <SUP><font face="Times New Roman">21,29,30</font></P> </SUP>    <P ALIGN="JUSTIFY"><font face="Times New Roman">El tumor puede ser confundido con un carcinoma de c&eacute;lulas escamosas por la presencia, en ambas lesiones, de una proliferaci&oacute;n de epitelio escamoso, aunque el carcinoma presenta caracter&iacute;sticas t&iacute;picas de malignidad como pleomorfismo celular, hipercromatismo nuclear y aumento de figuras mit&oacute;ticas. </font> <SUP><font face="Times New Roman">28</font></P> </SUP>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">TRATAMIENTO</font></b></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">La lesi&oacute;n debe ser tratada por medio de la exodoncia de los dientes afectados y la excisi&oacute;n quir&uacute;rgica conservadora del tumor, con una peque&ntilde;a posibilidad de recidiva.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Las lesiones mandibulares, de acuerdo con Hooper &amp; cols<I>.</I><SUP>17</SUP>, pueden ser tratadas de manera m&aacute;s conservadora con enucleaci&oacute;n y curetaje. Lesiones m&aacute;s extensas con infiltraci&oacute;n de estructuras adyacentes requieren intervenciones m&aacute;s radicales, como la resecci&oacute;n en bloque o hemimaxilectomia.</font></P>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">CONCLUCIONES</font></b></P>     ]]></body>
<body><![CDATA[<P ALIGN="JUSTIFY"><font face="Times New Roman">Despu&eacute;s de la revisi&oacute;n de la literatura, se concluy&oacute; lo siguiente:</font> </P>      <P ALIGN="JUSTIFY"><font face="Times New Roman">1.</font></FONT><font size="1" face="Times New Roman">&nbsp;&nbsp; </font><FONT SIZE=3><font face="Times New Roman">El TOE es una neoplasia benigna rara, que probablemente se origina de los restos epiteliales de Malassez, en el ligamento periodontal.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">2.&nbsp;&nbsp; Histol&oacute;gicamente est&aacute; compuesto por islas de epitelio escamoso de formato y tama&ntilde;os variables, con una capa perif&eacute;rica de c&eacute;lulas cuboides aplanadas, las cuales se encuentran dentro de un estroma de tejido conjuntivo fibroso. Las islas pueden presentar degeneraci&oacute;n microc&iacute;stica y calcificaciones. Este aspecto lo distingue, principalmente, del ameloblastoma.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">3.&nbsp;&nbsp; La edad promedio es de 38 a&ntilde;os, con un amplio rango de edades, que varia desde los 8 hasta los 74 a&ntilde;os de edad.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">4.&nbsp;&nbsp; Presenta una ligera predilecci&oacute;n por el sexo masculino.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">5.&nbsp;&nbsp; </font></FONT><FONT SIZE=3><font face="Times New Roman">El TOE tiene una distribuci&oacute;n similar en ambos maxilares, siendo que en la maxila muestra un comportamiento m&aacute;s agresivo, pudiendo necesitar de tratamientos m&aacute;s radicales.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">6.&nbsp;&nbsp; </font></FONT><FONT SIZE=3><font face="Times New Roman">Los s&iacute;ntomas asociados al TOE son movilidad dent&aacute;ria, sensibilidad a la percusi&oacute;n y a la palpaci&oacute;n, pero en la mayor&iacute;a de los casos&nbsp; son asintom&aacute;ticos.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">7.&nbsp;&nbsp; </font></FONT><FONT SIZE=3><font face="Times New Roman">Radiogr&aacute;ficamente, se presenta como una lesi&oacute;n unilocular triangular o semicircular asociada a las ra&iacute;ces de los dientes afectados, no se observa espacio periodontal. Algunas veces, presenta una imagen multilocular o puede&nbsp; asociarse a un diente no erupcionado.</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">8.&nbsp;&nbsp; </font></FONT><FONT SIZE=3><font face="Times New Roman">El tratamiento de elecci&oacute;n es la excisi&oacute;n quir&uacute;rgica, con una peque&ntilde;a posibilidad de recidiva.</font></P>      <P ALIGN="CENTER"><font face="Times New Roman"><b><a name="t1"></a>Tabla No1.&nbsp; </b>Resumen de los casos publicados del tumor odontog&eacute;nico escamoso&nbsp;</font></P> </FONT>     ]]></body>
<body><![CDATA[<div align="center">       <center><TABLE BORDER="1" CELLSPACING=2 WIDTH=517> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">A&ntilde;o</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">N°</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Referencia</font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Signos y s&iacute;ntomas</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Caracter&iacute;sticas Radiogr&aacute;ficas</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;reas radiol&uacute;cidas de destrucci&oacute;n &oacute;sea</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">2</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n indolora</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida asociada&nbsp; canino incluso</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">3</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida con margen&nbsp; radiopaca</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">4</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">P&eacute;rdida irregular del trabeculado (23)</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">5</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria , p&eacute;rdida &oacute;sea</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">P&eacute;rdida&nbsp; &oacute;sea severa parecida a periodontitis</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1975</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">6</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Pullon<SUP>2</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia asociada 3° molar&nbsp; incluso</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1977</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">7</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Doyle<SUP>16</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Dolor , movilidad,&nbsp; sensibilidad&nbsp;&nbsp; percusi&oacute;n y&nbsp; palpaci&oacute;n</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n radiol&uacute;cida (11–12)</font></P>     <P><font size="2" face="Times New Roman">&nbsp;</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1977</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">8</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Doyle<SUP>16</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n indolora</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia multilocular</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" HEIGHT=6 align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1980</font></TD> <TD WIDTH="5%" VALIGN="TOP" HEIGHT=6 align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">9</font></TD> <TD WIDTH="14%" VALIGN="TOP" HEIGHT=6 align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">McNeill<SUP>24</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" HEIGHT=6 align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria, sensibilidad percusi&oacute;n&nbsp; palpaci&oacute;n</font></TD> <TD WIDTH="39%" VALIGN="TOP" HEIGHT=6 align="left">     <P><font size="2" face="Times New Roman">P&eacute;rdida &oacute;sea severa&nbsp; 4 cuadrantes</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1980</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">10</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">*Van Der Waal<SUP>4</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n indolora, movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida definida 44-45</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1980</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">11</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Hooper<SUP>17</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria, sensaci&oacute;n de presi&oacute;n,&nbsp; p&eacute;rdida&nbsp; &oacute;sea</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n&nbsp; radiol&uacute;cida&nbsp; maxila ant.&nbsp; mand&iacute;bula post.</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1981</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">12</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Kangvonkit<SUP>31</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Masa indolora</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida bien definida (23)</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1981</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">13</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Carr<SUP>23</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n indolora, movilidad dent&aacute;ria, leve expansi&oacute;n&nbsp; en paladar</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida triangular, reabsorci&oacute;n y&nbsp;&nbsp;&nbsp; separaci&oacute;n de las ra&iacute;ces (24-25)</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1981</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">14</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Leventon<SUP>32</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida circunscrita (34-35)</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1981</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">15</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Sampaio<SUP>9</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida&nbsp; regi&oacute;n ed&eacute;ntula del 22</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">16</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Goldblatt<SUP>13</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Dolor, drenaje, 37 sensible a la percusi&oacute;n</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida ovoide, circunscrita, distal&nbsp; al&nbsp; 37, zona ed&eacute;ntula</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">17</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Goldblatt<SUP>13</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Desconforto</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida difusa, hemisf&eacute;rica</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">18</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Goldblatt<SUP>13</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida 2 x 3</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">19</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Goldblatt<SUP>13</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n&nbsp; recidiva</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia triangular circunscrita</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">20</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Goldblatt<SUP>13</SUP></font></TD> </center> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P ALIGN="left"><font size="2" face="Times New Roman">No descrito</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P ALIGN="left"><font size="2" face="Times New Roman">No descrito</font></TD> </TR>       <center> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1982</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">21</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Anneroth<SUP>7</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia bien definida (43-45)</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1983</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">22</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">*Swan<SUP>5</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD>   </center> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P ALIGN="left"><font size="2" face="Times New Roman">Sin imagen radiogr&aacute;fica</font></TD> </TR>       <center> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">1983</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">23</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Cataldo<SUP>14</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">P&eacute;rdida&nbsp; &oacute;sea severa, separaci&oacute;n&nbsp; de las&nbsp; ra&iacute;ces</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1984</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">24</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Norris<SUP>25</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radiolusc&ecirc;ncias&nbsp; asociadas 3° molares</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">1985</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">25</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">*Hietanen<SUP>6</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">N&oacute;dulo indoloro</font></TD>   </center> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P ALIGN="left"><font size="2" face="Times New Roman">Sin imagen radiogr&aacute;fica</font></TD> </TR>       <center> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1985</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">26</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Warnock<SUP>33</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida definida</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1985</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">27</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Kristensen<SUP>34</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Dolor, tumoraci&oacute;n proceso alveolar sup. y&nbsp; porci&oacute;n&nbsp; adyacente del paladar</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida en&nbsp; proceso alveolar sup. y paladar</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1985</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">28</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Monteil<SUP>18</SUP> </font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Expansi&oacute;n indolora asociada canino impactado, parestesia</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida con halo radiopaco asociada a canino impactado</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1986</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">29</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Mills<SUP>35</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida difusa&nbsp; ra&iacute;ces&nbsp; molares sup. inf.</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1989</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">30</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Tatemoto<SUP>26</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1989</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">31</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Tatemoto<SUP>26</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radiolusc&ecirc;ncia irregular en el hueso alveolar</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1989</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">32</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Leider<SUP>8</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tica</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">P&eacute;rdida &oacute;sea severa</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1989</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">33</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Leider<SUP>8</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n&nbsp; indolora, levemente expansiva</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Maxila: &aacute;rea radiol&uacute;cida&nbsp; entre 11-12</font></P>     <P><font size="2" face="Times New Roman">Mand&iacute;bula: radioluscencia triangular 33-34</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1990</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">34</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Loyola<SUP>10</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Expansi&oacute;n&nbsp; cortical &oacute;sea</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia&nbsp; difusa asociada a&nbsp; 3° molar</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1990</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">35</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Reichart<SUP>36</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Movilidad dent&aacute;ria, dolor moderada, inflamaci&oacute;n firme</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia multilocular, separaci&oacute;n de las ra&iacute;ces</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1990</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">36</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Yaacob<SUP>37</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Inflamaci&oacute;n indolora</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida hemisf&eacute;rica ,&nbsp; l&iacute;mite escler&oacute;tico</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1990</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">37</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Schwartz – Arad<SUP>28</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n&nbsp; exof&iacute;tica sensible a palpaci&oacute;n,&nbsp; ulcerada superficialmente</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia entre&nbsp; canino y 1º molar dec&iacute;duos</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" HEIGHT=33 align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1993</font></TD> <TD WIDTH="5%" VALIGN="TOP" HEIGHT=33 align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">38</font></TD> <TD WIDTH="14%" VALIGN="TOP" HEIGHT=33 align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Baden<SUP>15</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" HEIGHT=33 align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Tumefacci&oacute;n , ulceraci&oacute;n superficial,&nbsp; movilidad&nbsp; de los dientes remanentes</font></TD> <TD WIDTH="39%" VALIGN="TOP" HEIGHT=33 align="left">     <P><font size="2" face="Times New Roman">&Aacute;rea radiol&uacute;cida difusa desde&nbsp; incisivos hasta tuberosidad, afectando seno maxilar</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1993</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">39</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Baden<SUP>15</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Lesi&oacute;n expansiva asintom&aacute;tica ulceraci&oacute;n gingival, consistencia firme</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radiolusc&ecirc;ncia&nbsp; multilocular ,mesial 3° molar, localizado en &aacute;rea desdentada</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1993</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">40</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Baden<SUP>15</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P><font size="2" face="Times New Roman">Lesiones&nbsp; nodulares&nbsp; en enc&iacute;a adherida&nbsp; maxilar, asintom&aacute;tica</font></TD>   </center> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P ALIGN="left"><font size="2" face="Times New Roman">Sin imagen radiogr&aacute;fica</font></TD> </TR>       <center> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1993</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">41</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Saxby<SUP>27</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Inflamaci&oacute;n firme, en&nbsp; enc&iacute;a adherida</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Aumento leve de&nbsp; radioluscencia</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1998</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">42&nbsp;&nbsp;</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     ]]></body>
<body><![CDATA[<P ALIGN="CENTER"><font size="2" face="Times New Roman">Kusama<SUP>11</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Dolor, inflamaci&oacute;n firme</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia relacionada diente incluso</font></TD> </TR> <TR><TD WIDTH="7%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">1999</font></TD> <TD WIDTH="5%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">43</font></TD> <TD WIDTH="14%" VALIGN="TOP" align="left">     <P ALIGN="CENTER"><font size="2" face="Times New Roman">Ide<SUP>12</SUP></font></TD> <TD WIDTH="35%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Asintom&aacute;tico</font></TD> <TD WIDTH="39%" VALIGN="TOP" align="left">     <P><font size="2" face="Times New Roman">Radioluscencia relacionada 3<FONT FACE=Symbol SIZE=1>°</FONT> molar&nbsp; impactado</font></TD> </TR> </TABLE>   </center> </div>  <FONT SIZE=3>     <P><font face="Times New Roman">Ant.: anterior a superficie mesial del canino post.: posterior a la superficie distal del canino</font></P>     <P><font face="Times New Roman">Registro dent&aacute;rio FDI/OMS</font></P>     ]]></body>
<body><![CDATA[<P><font face="Times New Roman">*&nbsp;&nbsp; Casos&nbsp; no aceptados</font> </P>     <P><font face="Times New Roman">** No incluye casos:&nbsp; 1</font></FONT><font face="Times New Roman"><FONT FACE=Symbol SIZE=3>° Anneroth &amp; Hansen (1982)<SUP>7</SUP>, 3°</FONT></font><FONT SIZE=3> <font face="Times New Roman"> Leider &amp; cols. (1989)<SUP>8</SUP>,</font> </P>     <P><font face="Times New Roman">publicados por otros autores.</font></P>     <P ALIGN="JUSTIFY"><b><font face="Times New Roman">REFERENCIAS</font></b></P>     <!-- ref --><P ALIGN="JUSTIFY"><font face="Times New Roman">1. </font></FONT><FONT SIZE=3><font face="Times New Roman">Kramer, I.R.H.; Pinborg, J.J.; Shear, M.: Histological typing of odontogenic tumours. 2<SUP>nd</SUP> Edition. Geneva. Springer Velag. (1992).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=078564&pid=S0001-6365200200030001300001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><P ALIGN="JUSTIFY"><font face="Times New Roman">2. </font></FONT><font face="Times New Roman" SIZE="3">Pullon, P.A.; Shafer, W.G.; Elzay, R.P.; Kerr, D.A.; Corio, R.L.: Squamous odontogenic tumor. Report of six cases of a previously undescribed lesion. Oral Surg Oral Med Oral Pathol. 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(1986); 61(6): 557-63.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=078598&pid=S0001-6365200200030001300035&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><P ALIGN="JUSTIFY"><font face="Times New Roman">36. </font></FONT><FONT SIZE=3><font face="Times New Roman">Reichart, P.A.; Philipsen, H.P.: Squamous odontogenic tumor. J Oral Pathol. 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(1994).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=078601&pid=S0001-6365200200030001300038&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><P ALIGN="JUSTIFY"><font face="Times New Roman">39. </font></FONT><FONT SIZE=3><font face="Times New Roman">Saap, J.P; Eversole, L.R.; Wysocki, G.P.: Contemporary oral and maxillofacial pathology. Saint Louis, Mosby. (1997).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=078602&pid=S0001-6365200200030001300039&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><P><font face="Times New Roman">40. </font></FONT><FONT SIZE=3><font face="Times New Roman">Giunta, J.L. Case #158. 2000, obtenible en: &lt; http// <U>www.forsyth.org/oralpathology/case _108 aswer .htm</U> &gt;. (consulta: 23&nbsp; mayo 2001).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=078603&pid=S0001-6365200200030001300040&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><P ALIGN="JUSTIFY"><font face="Times New Roman"><b>DIRECCIONES</b></font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Ana Isabel Ortega*&nbsp; Av Limeira, 901 – Bairro Arei&atilde;o CEP: 13414-018&nbsp; &nbsp;Piracicaba – SP – Brasil Telf: 55-19-430 5327 Fax:&nbsp; 55-19-430 5218&nbsp; E-mail: </font> </FONT><U><FONT SIZE=3>ortegaloza@ig.com.br</FONT></P> </U><FONT SIZE=3>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Marcia Leal Spinelli Casanova&nbsp; Av Limeira, 901 – Bairro Arei&atilde;o&nbsp; CEP: 13414-018&nbsp;&nbsp; Piracicaba – SP – Brasil Telf: 55–19–430 5327&nbsp; Fax: 55-19-430 5218&nbsp; E-mail: </font> </FONT><U><FONT SIZE=3>marciaspinelli@ig.com.br</FONT></P> </U><FONT SIZE=3>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Le&ocirc;nidas de Freitas&nbsp; UNISA Secretaria de Posgrado. Campus I Rua Prof. En&eacute;as de Siqueira Neto, 340 – Jd. das Imbuias CEP: 04829-300&nbsp; S&atilde;o Paulo - SP - Brasil&nbsp; &nbsp;Telf: 55-11-55458814</font></P>     <P ALIGN="JUSTIFY"><font face="Times New Roman">Francisco Haiter Neto Av Limeira, 901 – Bairro Arei&atilde;o CEP: 13414-018&nbsp; &nbsp;Piracicaba – SP – Brasil Telf: 55-19-430 5327&nbsp; Fax:&nbsp; 55-19-430 5218 E-mail: </font> </FONT><U><FONT SIZE=3>haiter@fop.unicamp.br</FONT></P> </U><FONT SIZE=3> <OL>      <P ALIGN="JUSTIFY">    ]]></body>
<body><![CDATA[<LI><font face="Times New Roman">Enviar correspondencia para este autor.</font> </LI>    </OL>  </FONT>     ]]></body>
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