How is urticarial vasculitis differentiated from leukocytoclastic vasculitis (LCV) during the physical exam?

Updated: Dec 09, 2020
  • Author: A Brooke W Eastham, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

The urticarial lesions associated with LCV differ from those of classic urticaria. The following three characteristics of these lesions, although not always present in every patient, are typical of urticarial vasculitis:

  • Longer duration (often >24 h)
  • Residual pigmentation or ecchymosis after resolution (see the image below)
  • Patients experience more burning than itching
Urticarial vasculitis. Lesions differ from routine Urticarial vasculitis. Lesions differ from routine urticaria (hives) in that they last longer (often >24 h), are less pruritic, and often resolve with a bruise or residual pigmentation.

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