USMLE step 2 Mcq 340:A 67 year old man complains of pain in his epigastrium

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Question:
A 67 year old man complains of pain in his epigastrium that radiates to his back and unexplained weight loss. His stools are light colored and his urine is dark. He presents with jaundice. A work-up is done and it is determined that he has pancreatic carcinoma located at the head of the pancreas. His laboratory tests reveal a mild anemia, an elevated serum amylase, and a conjugated hyperbilirubinemia. His unconjugated bilirubin is within normal limits. What is the most likely cause of his jaundice?

a) intrahepatic obstructive jaundice
b) extrahepatic obstructive jaundice
c) obstructive jaundice consisting of both intrahepatic and extrahepatic obstruction
d) hepatocellular jaundice
e) hemolytic jaundice


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