A 5-week-old boy has projectile non-bilious vomiting after feeds and a palpable olive-shaped mass. What is the most likely diagnosis?
Answer and explanation
Correct answer: A. Infantile pyloric stenosis
- Step 1: The picture of projectile non-bilious vomiting with an olive-shaped mass fits Infantile pyloric stenosis.
Answer
Infantile pyloric stenosis.
Why not the others: 'Gastro-oesophageal reflux': it gives effortless regurgitation with normal growth and no mass. 'Duodenal atresia': it gives bilious vomiting from birth. 'Malrotation with volvulus': it gives bilious vomiting and an acutely ill infant.
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