SUCCESSFUL ENDOSCOPIC RESECTION OF A LYMPHOEPITHELIAL CYST AT THE GASTRIC CARDIA: A CASE REPORT

Abstract

A 73-year-old woman had a submucosal tumor of 5 mm in diameter at the gastric cardia. On the basis of findings from esophagogastroduodenoscopy and endoscopic ultrasonography, the lesion was thought to be a neuroendocrine tumor. However, pathological examination of the biopsy specimen could not provide a definitive diagnosis. We treated the lesion with endoscopic mucosal resection with ligation device (EMR-L). The final diagnosis was lymphoepithelial cyst. This is the first case of gastric lymphoepithelial cyst treated by endoscopic resection. Gastric lymphoepithelial cyst is very rare and further accumulation of cases is necessary.