How are the cutaneous biopsy findings of urticarial lesions (hives) categorized?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Answer

According to a study, the cutaneous biopsy of urticaria lesions may be divided into the following categories, as the response to treatment could be different:

  • Class 1 - A mixture of perivascular dermal inflammatory infiltrates composed of lymphocytes, monocytes, and neutrophils, eosinophils, or both

  • Class 2 - Inflammatory infiltrate chiefly composed of neutrophils [37]

  • Class 3 - Inflammatory infiltrate mainly composed of eosinophils


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