HETEROTOPIC GASTRIC-MUCOSA OF THE GALLBLADDER

A case of heterotopic gastric mucosa in the fundus of the gallbladder is reported. A 23-year-old man, who had been healthy and asymptomatic, visited our hospital because of abnormal findings in a liver enzyme t est given during a routine health screening. Ultrasonography demonstra ted a highly echogenic polypoid mass in the fundus of the gallbladder. The gallbladder mass was confirmed by both computed tomography and in travenous cholangiogram. After a 10-month follow up, laparoscopic chol ecystectomy was performed. Intraoperative touch smear cytology of this lesion revealed class II cells. The surgical specimen revealed a 15 x 10 x 5 mm polypoid lesion in the fundus, with no gallstones in the ga llbladder. Histologically, the polypoid lesion consisted of both fundi c type and pyloric type gastric glands located in the mucosa of the ga llbladder. In the literature, 42 cases of heterotopic gastric mucosa o f the gallbladder have been reported, only 3 of which, including this present case, were found incidentally, with no apparent symptoms.