What are the histologic findings of chronic lesions in hidradenitis suppurativa (HS)?

Updated: Nov 20, 2020
  • Author: Marina Jovanovic, MD, PhD; Chief Editor: William D James, MD  more...
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Chronic lesions have a dermis with an inflammatory cell infiltrate and foreign body–type granulomas around the hair follicles and the sinus tracts. The presence of epithelioid granulomas in so-called granulomatous hidradenitis suppurativa should alert to the possibility of coexisting granulomatous disease, such as Crohn disease or sarcoidosis. [62]

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