2019 Volume 61 Issue 10 Pages 2360-2365
A 72-year-old man was being followed up after endoscopic submucosal dissection of esophageal cancer. An 8-mm, mucosal, elevated lesion was noted in the posterior wall of the gastric fornix, and was identified as Group 1 on biopsy. Examination six months later showed that the lesion had grown to 15 mm, with a morphology resembling that of a submucosal tumor. Gastric cancer (pap) was diagnosed from biopsy. Endoscopic ultrasound (EUS) revealed hyperechoic spots in the submucosa, and submucosal invasion of gastric cancer was suspected. Given the possibility of reactive changes and the patientʼs own wishes, endoscopic submucosal dissection was performed. Histopathological examination revealed a transitional appearance from normal epithelial cells to tumor cells inside an ectopic gastric gland together with calcifications within the tumor. This was considered to represent a calcified cancer originating from an ectopic gastric gland. We report herein a case of gastric cancer originating from an ectopic gastric gland with submucosal tumor-like morphology and characteristic appearance on EUS.
