A case of carcinoid tumor of the gallbladder associated with adenocarcinoma

Abstract

A very rare case of carcinoid tumor of the gallbladder was reported. The patient was a forty-two year-old female whose chief complaint was right hypochondralgia. The preoperative endoscopic retrograde cholangiopancreatography revealed anomalous arrangement of the pancreaticobiliary duct and tumor of the gallbladder. Cholecystecomy and removal of the regional lymph nodes and resection of the bile duct and Roux-enY choledochojejunostomy were performed. The tumor was 36 × 23 mm in diameter. Histologically, the tumor showed carcinoid and adenocarcinoma with areas of mucous change. Carcinoid cells were containing argylophil granules, but no argentaffin granules were detected.15 cases of carcinoid of the gallbladdeer have been reported in Japan. In those,6 cases were composite tumor (carcinoid tumor associated with adenocarcinoma). Carcinoid tumor with anomalous arrangement of the pancreaticobiliary duct has not been reported before in the literature.