The extrinsic compression of the hepatocholedochus by a cavernomatosis of the portal vein, is an unusual pathology. The present case begun clinically as an obstructive jaundice, assuming that the vascular origin of the compression increased the litiasic biliary disease. The percutaneous transhepatic cholangiography was the diagnostic method that suggested a double illness of the biliary system. The surgery and the pathology certificated the diagnosis. The correct treatment once confirmed the obstructive trial, must be: the extraction of the biliary gallstones and the bile-digestive derivation (preferently the hepatic-jejunum anastomosis in Y of Roux).