[Hidradenitis suppurativa involving the perineal region].

Hidradenitis suppurativa (HS) is a chronic inflammatory disease of the skin and subcutaneous tissue. It may occur anywhere in skin containing apocrine sweat glands, but it most often affects the skin of the axilla and the inguinoperineal region. HS of the perineal region is frequently misdiagnosed as other inflammatory conditions, resulting in inappropriate treatment. The best treatment is excision of all the affected skin and subcutaneous tissue. We describe 3 patients with extensive HS and the results of their treatment.