Resumen

ZAMBRANO, L et al. Linfoma de células B de la zona marginal extranodal del tejido linfoide asociado a mucosas (malt) primario de esófago: Presentación de un caso. Gen [online]. 2007, vol.61, n.1, pp.55-57. ISSN 0016-3503.

The gastrointestinal tract is the most common extra nodal site involved in Non- Hodgkin's lymphoma. However, esophageal involvement is extremely rare, accounting for less than 1% of patients with lymphoma. It has been described that esophageal involvement in lymphoma is more often a result of contiguous spread from mediastinal lymph nodes or from an extended gastric lymphoma. A 59 year old female consulted for dyspeptic symptoms. Endoscopic examination revealed a small submucosal mass, that measured 1 cm located at the lower thoracic esophagus. The biopsy reported a Malt lymphoma that was confirmed by immunohistochemistry. She received therapy for H. pylori eradication. Endoscopic mucosal resection was performed, and isolated groups of atypical lymphocytes were found, with free resection margins. Endoscopic follow up has been normal. Few cases have been reported in literature, therefore biological and clinical characteristics of MALT lymphoma of the esophagus are currently unknown, further study is needed to establish risk factors in order to be able to take preventive measures.

Palabras clave : MALT; Lymphoma; Esophagus.