Resumen

SALAZAR MORALES, Miguel Fernando  y  REYES MACEDO, Montserrat. Gastric heterotopia as a cause of lower gastrointestinal bleeding. Rev. Fac. Med. (Méx.) [online]. 2013, vol.56, n.4, pp.42-45. ISSN 2448-4865.

We report a case of gastric heterotopia in the rectum and sigmoid colon clinically presented as rectal bleeding; a review of the literature on the topic is also presented. Case: Twenty-one-year-old male who had experienced rectal bleeding for one week. biopsies from ulcerated lesions in the rectum were taken and sent forward for histopathological assessment. Results: In the sample received, fragments of colon mucosa and oxyntic (fundus) gastric mucosa, which adenomeres were closely related to the crypts of Lieberkuhn. Conclusion: Gastric heterotopia is an unusual finding, even less common when it is located in distant segments of the distal colon. Although usually being a condition with an indolent and benign evolution, it may also produce certain malformations o complications, consequence of the same secretory activity of the ectopic tissue. It rarely becomes a malignant disease.

Palabras llave : Gastric heterotopia; ectopic gastric mucosa; lower gastrointestinal bleeding; rectal bleeding; heteroplasia alloplasia.