the e.r.c.p . provided an etiological diagnosis in obstructive jaundice and showed a biliary tract involvement by the cyst both in patients with a complication at admission or in the past history and in 25 % of the asymptomatic patients ( pericystic bilioma , exterior compression of bile ducts , direct communications between cyst and biliary tree ) .
C0005400
bile
C0005423
biliary tree