Duodenal atresia

Duodenal atresia
OMIM	223400
DiseasesDB	31514
MedlinePlus	001131

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Duodenal atresia is the congenital absence or complete closure of a portion of the lumen of the duodenum.

Epidemiology and Demographics

Approximately 20-40% of all infants with duodenal atresia have Down syndrome. It is also associated with polyhydramnios which is increased amniotic fluid in the uterus.

Diagnosis

The diagnosis of duodenal atresia is usually confirmed by radiography. An X-ray of the abdomen shows two large air filled spaces, the so-called "double bubble" sign. The air is trapped in the stomach and duodenum. Since the closure of the duodenum is complete in duodenal atresia, no air is seen distal to the duodenum.

Chest X Ray

Duodenal atresia (double bubble), Down Syndrome