Traumatic rupture of a type IVa choledochal cyst in an adult male

Figure 1 Abdominal computed tomography shows ascites, a normal-sized gallbladder, dilatation of the intrahepatic bile duct, and a huge choledochal cyst. GB: Gallbladder; HBD: Intrahepatic bile duct; CC: Choledochal cyst.

Figure 2 Abdominal computed tomography shows a rupture in the right wall of the choledochal cyst with hemorrhage (arrow).

Figure 3 Abdominal computed tomography shows pneumatosis in the intrahepatic bile duct after cyst excision, cholecystectomy and Roux-en-Y hepaticojejunostomy reconstruction (white arrow). The intrahepatic dilatation tends to reduce in size following sufficient biliary drainage.