Abstract

A 14-month-old girl was admitted to our department because of repeated nonbilious vomiting for > 3 months and malnutrition. Upper gastrointestinal radiography showed partial obstruction of the duodenum ([Fig. 1]). Gastroscopy confirmed a membranous duodenal stenosis with an opening of about 3 mm in diameter, and no view of the duodenal papilla above the membrane ([Fig. 2 a]). We performed both balloon dilation and membrane resection ([Video 1]).

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