Resumen

CALZADILLA, Indira et al. Tumores mesenquimales diagnosticados en la unidad de gastroenterología del HMPC entre los años 2007 aL 2009. Gen [online]. 2010, vol.64, n.3, pp.160-164. ISSN 0016-3503.

We evaluated the clinical records with a diagnosis of mesenchymal tumors confirmed by immunohistochemical analysis, from 2007 to 2009. The objective was to describe the population according to clinical and epidemiological features, diagnostic imaging and histopathological analysis. We found 11 patients with diagnoses of GIST⁽⁷⁾, leiomyoma⁽²⁾, leiomyosarcoma⁽¹⁾ and GANT⁽¹⁾; (82%) female and (18%) male, with a mean age of 55 years. They clinically presented abdominal pain (45%), dizziness (27%), heartburn (9%) and dysphagia (1%). 18% remained asymptomatic. Among the symptoms were: melena (36%), weight loss (27%), paleness (9%) and vomiting (9%). 36% of the patients had no findings at physical examination. Abdominal ultrasound was performed in 100% of the patients, with pathological findings related to the tumor in 27% of cases. In 90% of patients an upper digestive endoscopy was performed. 82% of findings were described as submucosal tumors and 9% was reported as normal. Lesions were located in stomach (60%); 27% in small bowel (duodenum and jejunum), 9% in esophagus and 9% in retroperitoneum. Endoscopic ultrasound was performed to 82% of patients, with a diagnostic accuracy of 90% for the tumors located in esophagus, stomach and small bowel; and 87,5% if the retroperitoneal tumor is included. The abdomen Computed Tomography (CT) was performed in 45% of patients with pathological findings in 100% of the cases, described as Space occupying lesion (SOL) in stomach, intestine, esophagus and retroperitoneum; and, in 20% of patients metastatic liver cancer was found. 82% received surgical treatment, the remaining 18% was not performed due to contraindication or are waiting for the procedure. And 18% of patients received medical therapy with Imatinib.

Palabras clave : Mesenchymal tumors; GIST; GANT; leiomyoma; leiomyosarcoma.