Presentation
For illustration purposes.
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A windsock at Hodenhagen Aerodrome Germany.
Photo courtesy of Olaf Oliviero Riemer, Germany.
Case Discussion
A windsock is a conical tube that resembles a large sock. It is placed on a mast and used to determine the strength and direction of wind, usually at airports.
In radiology the windsock sign is a classic finding seen with duodenal webs on upper GI fluoroscopy in children presenting with obstruction.
Less commonly, the windsock sign can be seen in intimo-intimal intussussception that occurs in acute aortic dissection on CT.
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