A 6-week-old firstborn boy has projectile non-bilious vomiting after every feed and a palpable 'olive' in the abdomen. What is the diagnosis?

Answer and explanation

Correct answer: C. Hypertrophic pyloric stenosis

  1. Step 1: Pyloric stenosis presents at 2 to 8 weeks and is treated surgically after correcting electrolytes.
Answer
Hypertrophic pyloric stenosis.
Why not the others: Volvulus causes bilious vomiting.

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