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.

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Article information

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

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Cases and figures

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     Case 1 : arrowed
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    Note the venous d...
    Case 2
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