Which histologic findings help differentiate Sweet syndrome from drug eruptions?

Updated: Feb 15, 2019
  • Author: Jonathan E Blume, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

In patients with Sweet syndrome, biopsy reveals edema of the superficial dermis and a dense infiltrate of neutrophils. Leukocytoclasia may be present, but vasculitis is absent.


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