2020 Volume 45 Issue 6 Pages 754-758
A 36-year-old woman who presented with a history of epigastric pain was found by esophagogastroduodenoscopy to have a gastric submucosal tumor and was referred to our hospital. Esophagogastroduodenoscopy at our hospital revealed a submucosal tumor measuring 20 mm in diameter on the greater curvature in the middle gastric body. Definitive diagnosis could not be obtained by endoscopic ultrasound-guided fine needle aspiration biopsy, as no epithelial or interstitial tissue could be collected. We performed surgical resection of the tumor for diagnosis. Partial gastric resection was performed by laparoscopic surgery. Histopathological examination revealed cystic lesions measuring 16 mm and 8 mm in diameter protruding to the serosal side. Gastric mucosal tissue, including gastric fundic glands, was found in some parts of the inner surfaces of the cysts. The cysts were surrounded by a smooth muscle layer continuous with the proper muscle layer of the stomach. From these histopathological findings, the tumors were diagnosed as gastric duplication. There are relatively few reported cases of resection for gastric duplication in adults, and we report our case together with a review of the literature.
