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Case of the Week 308




What's the most likely diagnosis?

  • Newborn with bilious vomiting

  1. Normal
  2. Hyaline membrane disease
  3. Ileal atresia
  4. Hypertrophic Pyloric Stenosis
  5. Duodenal atresia

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Answer:

 


5. "Double Bubble" sign in Duodenal atresia

 

 

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Double Bubble Sign in Duodenal Atresia

General Considerations

  • Seen primarily on radiographs of the abdomen of newborns
  • Represents duodenal obstruction from one of several causes:
    • Duodenal atresia
      • Complete obstruction by an atretic lumen
    • Duodenal web or stenosis
      • Partial obstruction by a diaphragm
      • Milder form of atresia
    • Annular pancreas
      • Pancreas surrounds the 2nd portion of duodenum
      • Since it is frequently associated with duodenal atresia, it has the same conventional radiographic findings

 

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