Resumen

DE FARIA, Alejandro et al. Ileum's neuroendocrine tumor: Report of a case. Gen [online]. 2012, vol.66, n.3, pp.190-195. ISSN 0016-3503.

The gastrointestinal neuroendocrine tumors (NET) represent less than 5% of the gastrointestinal tract neoplasms, being the small bowel, specially ileum, the most frequent location (30%). They originate from the diffuse endocrine gastrointestinal system and are able to secrete peptides and bioactive amines, mainly the 5-hidroxitryptamine (5-HT) or serotonine. The World Health Organization (WHO) classifies them according to its differentiation grade and biological behavior in 5 grades. The clinical manifestations could be absent or non specifics. Its finding, as in our patient case, can be casual. We report a case of a 56 years old female patient who complained of abdominal distention and anorectal pain. A colonoscopy with ileoscopy was performed finding a subepithelial tumor in the terminal ileum which inmunohistochemestry reported: Well differentiated neuroendocrine tumor. The treatment of NET varies from surgical resection alone in the less advanced stages, to surgical treatment associated to chemotherapy and radiotherapy in the most advanced stages, with a survival rate of 73 and 65% in the 5 and 10 years for the well differentiated tumors, being very important its early diagnosis. Equally must be highlighted the canulation of ileum cecal valve during a screening colonoscopy.

Palabras clave : Neuroendocrine Tumors; Ileoscopy; Inmunohistochemestry.