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 2.
Causes include 1,2:
- congenital obstruction
- midgut volvulus
- external compression of the duodenum
- 1. Reeder Maurice Merrick and Benjamin Felson. Reeder and Felson's gamuts in radiology. Springer, 2003. ISBN: 0387955887, 9780387955889.
- 2. Traubici Jeffrey. “The Double Bubble Sign1.” Radiology 220, no. 2 (2001): 463-464. doi:VL - 220.