double bubble sign

dou·ble bub·ble sign

in pediatric radiology, appearance of the dilated air-filled stomach and duodenal bulb, associated with duodenal atresia or web, less often midgut volvulus.

A radiologic finding in which there are 2 distinct gas pockets in an upper GI radiocontrast study, seen in those with atresia of the 2nd segment of the duodenum, 20–30% of whom have Down syndrome; the larger left bubble corresponds to gastric gas; the smaller right bubble corresponds to gas in the duodenal bulb. The double bubble sign may also occur in an annular pancreas with/without duodenal atresia, duodenal stenosis, peritoneal bands and volvulus. The sign is correspondingly smaller if there is passage of air

单词	double bubble sign
释义	double bubble sign dou·ble bub·ble sign in pediatric radiology, appearance of the dilated air-filled stomach and duodenal bulb, associated with duodenal atresia or web, less often midgut volvulus. A radiologic finding in which there are 2 distinct gas pockets in an upper GI radiocontrast study, seen in those with atresia of the 2nd segment of the duodenum, 20–30% of whom have Down syndrome; the larger left bubble corresponds to gastric gas; the smaller right bubble corresponds to gas in the duodenal bulb. The double bubble sign may also occur in an annular pancreas with/without duodenal atresia, duodenal stenosis, peritoneal bands and volvulus. The sign is correspondingly smaller if there is passage of air
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