Related Experiment Video
Updated: May 7, 2026

Establishment and Characterization of Small Bowel Neuroendocrine Tumor Spheroids
Published on: October 14, 2019
Giant Extragastrointestinal Mesenteric Stromal Tumor: A Case Report and Literature Review of a Rare Entity With
Dario E Medina-Muñoz1, Roberto Morales-Ramírez1, César J Treviño-Arizmendi1
1General Surgery, Dr. José Eleuterio González University Hospital at the Autonomous University of Nuevo León, Monterrey, MEX.
Abstract:
Extragastrointestinal stromal tumors (EGISTs) are rare mesenchymal neoplasms with a low frequency compared to gastrointestinal stromal tumors (GISTs). EGISTs share histological and immunohistochemical features with GISTs but occur outside the gastrointestinal tract, commonly in the mesentery or omentum. We report the case of a 52-year-old male presenting with a large asymptomatic abdominal mass. Imaging revealed a semi-solid-cystic tumor measuring 22 x 14 x 21.8 cm. Exploratory laparotomy confirmed an EGIST originating in the mesentery, which was successfully resected without complications. Histopathology showed high mitotic activity, CK117 positivity, and areas of necrosis. Postoperative recovery was uneventful, and the patient remains under follow-up. To the best of our knowledge, this case represents the first documented EGIST at José Eleuterio González University Hospital and one of the largest reported in Mexico. EGISTs remain poorly understood, and early surgical intervention remains the cornerstone of treatment. Further research is essential to develop tailored guidelines for their management.
More Related Videos
Related Concept Videos
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Other Disorders of Digestive System
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Pyloric Obstruction
Inflammatory Bowel Disease I: Introduction
Appendicitis

