What does inguinal-anogenital infiltration involve in hidradenitis suppurativa (HS)?

Updated: Aug 30, 2019
  • Author: Marina Jovanovic, MD, PhD; Chief Editor: William D James, MD  more...
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Inguinal-anogenital infiltration involves brown-red lesions with pus, blood, and a foul-smelling secretion that emerges from the numerous fistular openings. In the upper anal fold, terminal hairs emerge from thickened scars. Perianal hidradenitis suppurativa may cause pain, swelling, purulent discharge, bleeding, and fistulas. Progressive destruction of the normal skin architecture occurs; the malodorous discharge may be thin and serous or frankly purulent.

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