Pneumobilia, chronic diarrhea, vitamin K malabsorption: A pathognomonic triad for cholecystocolonic fistulas

Figure 1 Schematic demonstration of a cholecystocolic fistula (modified from Benage et al[7]). GB: Gallbladder; CBD: Common bile duct; RHD: Right hepatic duct; PD: Pancreatic duct; CF: Cholecystocolic fistula.

Figure 2 Ultrasonographic examination revealing pneumobilia and moderate dilatation of the intrahepatic bile ducts, with a normal common bile duct and a thick-walled gallbladder.

Figure 3 Computed tomography scan. A: Massive pneumobilia (“air cholangiogram”); B: Presence of air detected in the gallbladder.