[Pulmonary toxoplasmosis in AIDS. Report of 3 cases].

Pulmonary toxoplasmosis in AIDS is rare. Its frequency is estimated to be between 0.2 and 3.7% but is probably underestimated; however, it is lower than that of neurotoxoplasmosis and is rarely identified prior to autopsy. We describe herein 3 cases diagnosed in living patients. The clinical presentation is usually severe interstitial pneumonitis, occurring in profoundly immunodeficient patients. Toxoplasma gondii, the infectious agent, must always be sought in the bronchoalveolar lavage of such patients and is sometimes associated with other opportunistic infectious agents, such as Pneumocystis carinii.