Bronchial and gastrointestinal cryptosporidiosis in AIDS.

Cryptosporidiosis is a coccidial protozoan initially reported in domestic animals. It is primarily a gastrointestinal organism that does not invade mucosa. It was first described in 1976 in developing countries as an etiology of infantile diarrhea with inanition and malnutrition. Gastrointestinal involvement in patients with AIDS has been increasingly reported. We report a case of combined gastrointestinal and bronchial cryptosporidiosis. Cryptosporidium is an acid-fast organism which was successfully treated with erythromycin.