The case of a 28-year-old female patient with portal vein thrombosis mimicking tumour and causing obstructive jaundice is presented. The cavernous-transformed enlarged portal vein, explaining the mass-like lesion in the hepatic hilum on ultrasonography, compressed the extrahepatic bile ducts and caused obstructive jaundice. Endoscopic retrograde cholangiography demonstrated multiple nodular extrinsic indentations of the extrahepatic bile ducts with moderately dilated intrahepatic bile ducts.
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