Fig. 4From: Rapidly progressed neuroendocrine carcinoma in the extrahepatic bile duct: a case report and review of the literatureMacroscopic findings of the resected specimen showed a circumferentially flat, infiltrating lesion in the middle portion of the common bile duct around the junction of the cystic duct (arrow), measuring 25 × 23 × 10 mm in sizeBack to article page