A 5-week-old boy has had a week of worsening projectile, non-bilious vomiting shortly after feeds. He is keen to feed again straight afterwards and is losing weight. An olive-shaped mass is felt in the epigastrium. He was born at term and fed well for the first three weeks. There is no fever or diarrhoea, and the vomit has never contained bile or blood. Abdominal ultrasound has been arranged. After correction of dehydration and electrolytes, what is the definitive treatment?
October 2026 sitting
AMC Part 1 Recall Questions - October 2026
Free AMC MCQ recall questions for the October 2026 sitting: 100 explained AMC Part 1 recall-style questions with answers and a recall tip.
Not sure what to revise first? Read the October 2026 topic summary.
Question 1 of 100
free to practice
AMC Recalls