Air in bile ducts at abdominal plain x-ray can be seen in case of:

Air in bile ducts at abdominal plain x-ray can be seen in case of: 


A. Perforative gastric ulcer
B. Choledochoduodenoanastomosis
C. Ileus
D. Gallstone disease


Answer: B. Choledochoduodenoanastomosis


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