Fig. 4From: A case of small in situ perihilar cholangiocarcinoma incidentally accompanied by benign bile duct stricture after open cholecystectomyMacroscopic and microscopic findings of specimens. a Resected specimen. b Flat type in situ carcinoma located near the hepatic confluence (the yellow dotted circle). The carcinoma is distant from the bile duct stricture. c, d Microscopic findings of in situ carcinomaBack to article page