Windsock sign (duodenal web)

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 since in thoracic aortic dissection.

Share article

Article Information

rID: 23432
Section: Signs
Tag: stub
Synonyms or Alternate Spellings:
  • Duodenal windsock sign
  • Windsock appearance
  • Wind sock

Support Radiopaedia and see fewer ads

Cases and Figures

  • Drag
    Windsock (photo)
    Drag here to reorder.
  • Drag
    Case 1: intraluminal duodenal diverticulum
    Drag here to reorder.
  • Drag
     Case 2
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.