Resumen

ARROYO-MARTINEZ, Laura; ALVAREZ-PERTUZ, Humberto  y  ACUNA-CALVO, Jorge. Tumor gástrico estromal como causa de sangrado digestivo.. Acta méd. costarric [online]. 2006, vol.48, n.3, pp.131-134. ISSN 0001-6002.

Gastrointestinal Stromal tumors (GIST) are rare neoplasias of the gastrointestinal tract that arise from primitive mesenchymal cells. They are located throughout the gastrointestinal tract but are usually located in the stomach and small intestine. The majority are immunohistochemically positive for CD 117 and CD 34. Their clinical course is not easily predicted by standard means. Gastrointestinal bleeding and anemia are the most common clinical presentations. Surgical resection remains the mainstay of treatment, as chemotherapy and radiation are ineffective. Long-term follow-up is imperative, since recurrence rates are high. We present here the case of a 39 y-o female who came in with haemathemesis and black stools. After several upper endoscopies and an endoscopic ultrasonography, she underwent surgical removal of a gastrointestinal stromal tumor from her stomach. She did well after surgery and remains asymptomatic.

Palabras clave : leiomyomas; leiomyosarcomas; muscularis mucosae; gi fleending; gastrointestinal stromal tumor; endoscopic ultrasomal.