Abstract
A 56-year-old woman who was found to have a submucosal tumor (SMT) of the stomach in a medical check-up was admitted to our hospital for a detailed investigation of the SMT. Upper gastrointestinal endoscopy revealed an SMT of 20mm at the anterior wall of the antrum of the stomach. Endoscopic ultrasonography showed a hyperechoic tumor in the fourth layer of the stomach wall. CT examination showed a strongly enhancing tumor on arterial phase images and persistent enhancement on portal venous phase images. Laparoscopy endoscopy cooperative surgery was performed with a diagnosis of SMT of the stomach highly suspicious of a glomus tumor. Immunohistochemistry revealed expression of α-SMA but no expression of desmin, c-kit, CD34, or S-100. The tumor was finally diagnosed as a glomus tumor of the stomach.
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