Fig. 1From: Acute obstructive cholangitis due to fishbone in the common bile duct: a case report and review of the literatureExploration and truth of the long high-density shadow. a Abdominal ultrasonography view of the biliary tract shows choledocholithiasis (4.4 cm × 2.0 cm) with dilatation of intrahepatic and extrahepatic bile duct. b Plain CT scan image reveals a strip of hyperdense inside the CBD. c Coronal CT view of the long high-density shadow. d The photographs of the excised specimen showed a sharp linear fishboneBack to article page