What is a potential diagnostic pitfall in patients with chronic urticaria?

Updated: Jul 31, 2018
  • Author: Marla N Diakow, MD; Chief Editor: William D James, MD  more...
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A potential diagnostic pitfall is the failure to consider a diagnosis of urticarial vasculitis in patients with lesions lasting longer than 24 hours, in patients with lesions associated with pain more than with itching, and in patients with lesions resolving with pigmentary changes or scaling.

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