The windsock sign is a typical appearance of a duodenal web (intraluminal duodenal diverticulum) on upper gastrointestinal contrast series which consists of an intraduodenal barium contrast-filled sac that is surrounded by a narrow lucent line (web or intraluminal mucosal diaphragm) which is well demonstrated as the barium in the duodenum passes distal to the diverticulum.
This should not be confused with the windsock-like appearance seen in thoracic aortic dissection.
- 1. Materne R. The duodenal wind sock sign. Radiology. 2001;218 (3): 749-50. Radiology (full text) - Pubmed citation
- 2. Rha SE, Lee JH, Lee SY et-al. Duodenal diaphragm associated with long-term use of nonsteriodal antiinflammatory drugs: a rare cause of duodenal obstruction in an adult. AJR Am J Roentgenol. 2000;175 (3): 920-1. AJR Am J Roentgenol (full text) - Pubmed citation
- 3. Berrocal T, Torres I, Gutiérrez J et-al. Congenital anomalies of the upper g astrointestinal tract. Radiographics. 19 (4): 855-72. Radiographics (full text) - Pubmed citation