Related Experiment Video
Updated: Aug 29, 2026

Robotic Duodenal Sleeve Resection for Gastrointestinal Stromal Tumor with Rare Exon 8 KIT Mutation Following Neoadjuvant Imatinib
Published on: April 3, 2026
Jejunal gastrointestinal stromal tumor: a cause of obscure gastrointestinal bleeding
David A Sass1, Kapil B Chopra, Sydney D Finkelstein
1Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa, USA. dsass32@hotmail.com
Abstract:
In cases of obscure gastrointestinal bleeding, when a source for blood loss is not apparent from examination of the colon and upper gastrointestinal tract, the small bowel usually becomes the focus of investigation. A tumor with interesting pathologic features was found in a patient who presented with recurrent episodes of massive obscure gastrointestinal hemorrhage. This case highlights the importance of considering small intestinal tumors as the likely cause of obscure gastrointestinal hemorrhage in young patients and how a noninvasive test, eg, abdominal computed tomography scan, might obviate the need for more invasive testing.
Related Concept Videos
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease I: Introduction
Esophageal Varices-I: Introduction
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD: