[Stereotactic cerebral biopsy in acquired immunodeficiency syndrome (AIDS)].

Central nervous system (CNS) complications are currently described in patients with Acquired Immuno-Deficiency Syndrome (AIDS). CT-scan imaging is helpful in the description of the lesions. However, by CT-criteria alone, it is not possible to reliably distinguish toxoplasmosis from other CNS infections and from a primary CNS sarcoma. The authors consider that biopsy of the lesion is recommended to exclude other treatable diseases such as bacterial infections, tuberculosis, fungus and toxoplasmosis. Stereotactic technic gives the optimal precision and security.