Which clinical feature is more characteristic of extrahepatic cholangiocarcinoma?

Prepare for Liver Disease and Tumors Test with tailored flashcards and questions. Get detailed explanations and improve your knowledge. Ace the medical student exam!

Obstructive jaundice with a palpable gallbladder points to malignant blockage of the extrahepatic biliary tree. When the common bile duct or common hepatic duct is obstructed by a tumor, bile backs up and the gallbladder becomes distended, producing a palpable, typically non-tender mass in the right upper quadrant—this is known as Courvoisier sign. This scenario is classic for cancers arising outside the liver that block bile flow, such as extrahepatic cholangiocarcinoma or pancreatic head cancer.

In contrast, a liver mass on imaging could reflect intrahepatic disease rather than extrahepatic biliary obstruction. Early weight gain is not typical for cancer, where weight loss is more common. Sparing the biliary tree on imaging would argue against an obstructive cholangiocarcinoma, which by definition involves the biliary ducts.