[Principal muco-cutaneous aspects encountered in AIDS].

Due to the high frequency and variety of the mucous cutaneous signs, the dermatologists are facing many cases of AIDS. These signs are no specific but only the consequence of a cellular immunodeficiency; they can be encountered in other situations, more specifically after an immunosuppressive treatment. Therefore, the diagnosis can be evocated only from AIDS association of the mucous cutaneous manifestations with other clinical, epidemiological and biological signs. The Kaposi's sarcoma which is present in 35 of the observed AIDS is in fact the cutaneous aspect of a cellular immunodeficiency. In one hand, the clinical lesions have a quiet involvement without any associated disorder. At the opposite, cutaneous lesions have a fulminant dissemination associated to lymph nodes and/or visceral involvement and opportunistic infections: these cases have a very severe prognosis. Kaposi's sarcoma is not observed in the cases of post-transfusional AIDS. Chronical herpes occurs frequently during this syndrome, the lesions lasting above six weeks associated to anal or genital localizations. Chronical candidosis, clinically associated, has a mucous cutaneous localization with involvement of the oral cavity, progressively extending digestive system and respiratory tracts.