Fig. 1From: Carcinosarcoma of Vater’s papilla: case report of a rare neoplasm and review of the literaturePreoperative endoscopy. Endoscopy revealed a 10-mm tumor in Vater’s papilla and endoscopic retrograde biliary drainage was placed (A). Endoscopic ultrasonography revealed that the tumor (arrows) invaded pancreatic parenchyma (B). a, common bile duct; b, main pancreatic duct; c, duodenumBack to article page