Hidradenitis suppurativa

The diagnosis of hidradenitis suppurativa is clinical and based on the presence of recurrent inflammatory lesions, such as painful nodules, abscesses, fistulas, and scars, which primarily affect intertriginous areas rich in apocrine glands, such as the armpits, inguinal region, glutes, and submammary areas. The condition is characterized by repeated episodes of inflammation with purulent drainage and poor healing, leading to the formation of subcutaneous tunnels and fibrosis. To confirm the diagnosis, it is essential to observe the chronicity and recurrence of lesions in typical locations, usually beginning after puberty. The differential diagnosis includes furunculosis, carbuncle, isolated abscesses, folliculitis, and perianal Crohn’s disease.