Duodenal atresia results from a congenital malformation of the duodenum and requires prompt correction in the neonatal period. It is considered to be one of the commonest causes of fetal bowel obstruction.
The double bubble sign is seen in infants and represents dilatation of the proximal duodenum and stomach. It is seen in both radiographs and ultrasound, and can be identified antenatally.
Pathology
Causes include :
congenital obstruction
duodenal web
duodenal atresia
duodenal stenosis
annular pancreas
midgut volvulus
external compression of the duodenum
choledochal cyst
mesenteric duplication cyst
intramural duodenal haematoma
preduodenal portal vein
retroperitoneal tumour
superior mesenteric artery syndrome
Негізгі бет The double bubble sign - duodenal atresia
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