[Gastric pneumatosis as a sign of duodenal stenosis in a child with Down syndrome].

A case of gastric pneumatosis is described in a 6 month old girl with Down syndrome. Plain abdominal radiographs showed a radiolucent rim within the gastric wall and a dilated stomach. Ultrasonography showed diffuse echoic streaks of air in the gastric wall, pneumobilia and gastroduodenal dilatation. Upper GI series showed duodenal stenosis. Gastric pneumatosis (air within the gastric wall), is an unusual radiographic finding. It may be of mechanical or inflammatory origin or, in some rare cases, remain unexplained.