Venous distension sign

The venous distension sign is a finding that may be identified on sagittal imaging of the dural venous sinuses which is said to have a diagnostic sensitivity and specificity of 94% for intracranial hypotension. The sign is positive when there is a convex inferior margin of the midportion of the dominant transverse sinus on a sagittal image. This is distinct from the normal appearance of this segment which usually has a concave or straight lower margin.1

Share article

Article Information

rID: 17462
Section: Signs
Synonyms or Alternate Spellings:
  • Venous distention sign of intracranial hypotension

Support Radiopaedia and see fewer ads

Cases and Figures

  • Drag
     Case 1 : arrowed
    Drag here to reorder.
  • Drag
    Note the venous d...
    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.