[AIDS and opportunistic infections of the central nervous system].

Central nervous system diseases occur frequently in patients with AIDS. From 20 to 40% of all these patients develop neurological symptoms and in about 10% of AIDS patients the onset of the disease is characterized by neurological symptoms. These may be related to primary HIV infection or to any of a large number of opportunistic viral and non-viral infections. Moreover, the observation of multiple central nervous system infections is frequent, making the diagnosis difficult. AIDS-related opportunistic infections of the central nervous system are discussed, presenting both a review of the literature and several case reports.