[Suppurative hidradenitis in Down's syndrome. Apropos of three cases].

We present three patients affected by the Down's Syndrome who suffered hidradenitis suppurativa in perianal region for a long period of time with poor response to topical and systemic treatments. We describe both processes and the immunological alterations described in both groups. We conclude that hidradenitis suppurative may be a cutaneous manifestation relate to Down's Syndrome, but further research is necessary to clarify this associations.