Organ system anatomy · USMLE Step 1

A patient experiences pancreatic head enlargement. Which structure may become obstructed first?

  1. Splenic artery
  2. Common bile duct
  3. Gastroduodenal artery
  4. Portal vein
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Correct answer: Common bile duct

The common bile duct runs through the head of the pancreas. Enlargement may compress it, causing obstructive jaundice.

Difficulty: Medium Question 12 of 20

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