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MediumPaediatricsPyloric Stenosisukmlamrcgp aktpanemrcem sbamrcp part 1

A 4-week-old baby boy presents with projectile vomiting immediately after feeds for the past week. The vomiting is non-bilious. He appears hungry between feeds. On examination, he looks slightly dehydrated, and a small, firm, olive-sized mass is palpable in the epigastrium. What is the most likely diagnosis?

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