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Case 21 

Case 21
Case 21

Ellen Chung

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date: 31 October 2020

2-month-old with nonprogressive, nonbilious emesis.

Stair-step oblique images from an upper GI series show a curvilinear filling defect in the gastric antrum (arrowheads).

The differential diagnosis for vomiting in an infant also includes hypertrophic pyloric stenosis (HPS) and gastroesophageal reflux (GER) for nonbilious emesis, and malrotation/midgut volvulus for bilious emesis. HPS is progressive while GER and antral web are not, but GER often resolves by age 1 year....

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