Gastrointestinal stromal tumors (GISTs) develop in the digestive tract, mainly in the stomach, small intestine, colon, or esophagus. However, primary tumors with the same pathologic features as GISTs have been reported to occur outside of the digestive tract and are called extragastrointestinal stromal tumor (EGIST). We herein report a rare case of EGIST arising from the greater omentum in a patient with abdominal pain caused by intraperitoneal bleeding from the tumor.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8627809PMC
http://dx.doi.org/10.2169/internalmedicine.6519-20DOI Listing

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