[Extra-pulmonary pneumocystosis in the course of AIDS. Report of a case].

We report a case of splenic pneumocystosis in a human immunodeficiency virus-positive individual treated prophylactically with aerosolized pentamidine. Despite this infection with Pneumocystis carinii, the bronchoalveolar lavage revealed no microorganisms. The use of aerosolized pentamidine as prophylaxis for Pneumocystis carinii is not protective against extrapulmonary pneumocystosis because of inadequate systemic distribution of the drug.