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Primary Gastric Leiomyosarcoma Presenting as an Endoscopic Diagnostic Pitfall: A Case Report
Journal of the Korean Society of Radiology
|June 17, 2026
Abstract
None:
Leiomyosarcomas are malignant tumors derived from cells that exhibit smooth muscle differentiation. Although primary leiomyosarcoma of the stomach has occasionally been reported in the form of case reports, its publication in radiology journals is exceedingly rare; therefore, preoperative diagnosis remains challenging. Herein, we report the imaging and endoscopic findings of a 71-year-old woman with primary gastric leiomyosarcoma that was initially misdiagnosed as early gastric cancer on endoscopy and as a small subepithelial tumor on CT.
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