Glomus tumors, as a type of quite rare neoplasms, originate from modified smooth muscle cells of the glomus body whose function is to regulate blood flow within arteries according to the body temperature. Although these tumors most commonly occur in the peripheral soft tissues, especially in the distal parts of extremities, there have been rare reports of visceral involvement (Lorber et al., 2005) [1]. We report a case of gastric glomus tumor, which was preoperatively diagnosed by ultrasonic endoscopy as a gastric stromal tumor and treated by endoscopic submucosal dissection (ESD).
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