Human infestation with Fasciola hepatica is observed occasionally. Cho
lestasis due to parasitic obstruction of the common duct is an infrequ
ent complication. A case of fascioliasis is described in a 56 year-old
male with symptoms of biliary colic and biochemical cholestasis. The
diagnosis was based on the indirect hemagglutination test and the evid
ence of Fasciola hepatica in the extrahepatic biliary tract shown by u
ltrasound and ERCP. The patient presented an acute pancreatic reaction
during an attempt at therapeutic endoscopic sphincterotomy. Medical t
reatment was initiated then with Bithionol. Cholestasis as well as the
parasitosis were eliminated. Recovery was demonstrated by the normali
ty of the titres of hemagglutination and of the biliary tract by ERCP.