Embryologic Development and Defects · USMLE Step 1

A neonate is diagnosed with annular pancreas. This condition is most often caused by abnormal migration of which structure?

  1. Dorsal pancreatic bud
  2. Ventral pancreatic bud
  3. Hepatic diverticulum
  4. Mesonephric ducts
Show answer and explanation

Correct answer: Ventral pancreatic bud

Annular pancreas occurs when the ventral pancreatic bud splits and encircles the duodenum. This can cause duodenal obstruction.

Difficulty: Medium Question 19 of 20

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