A Case of Granular Cell Tumor of the Stomach in a Patient with Extramammary Paget's Disease

Granular cell tumor is an uncommon submucosal neoplasm of uncertain etiology and histogenesis. Having been reported in virtually all other sites, granular cell tumors of the gastrointestinal tract are rare. Reported cases in the gastrointestinal tract account for 5-9% of all granular celltumors, most commonly in the esophagus. Only one case of gastric granular cell tumor has been reported in Korea. We report a case of asymptomatic gastric granular cell tumor coexisting with gastric adenoma in 56-year-old male who had extramammary Paget's disease in the right scrotum, and it was successfully managed by endoscopic polypectomy.