What are the histologic findings in Gianotti-Crosti syndrome?

Updated: Aug 13, 2019
  • Author: Kara N Shah, MD, PhD; Chief Editor: William D James, MD  more...
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The histology of skin biopsy specimens is nonspecific. Mild epidermal acanthosis and spongiosis with focal parakeratosis can be seen. A lymphocytic exocytosis may also be seen. Edema of the papillary dermis and a superficial lymphohistiocytic infiltrate, sometimes with a perivascular localization or a lichenoid appearance, is common. Rarely, features of a lymphocytic vasculitis have been noted.

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