Mycobacterium haemophilum infection in a patient with AIDS.

We report the isolation of a nutritionally fastidious mycobacterial species, Mycobacterium haemophilum, from the skin of a patient with AIDS. The diagnosis of the mycobacterial nature of the patient's lesions was complicated by extensive Kaposi's sarcoma. It is recommended that slowly growing fastidious mycobacteria be sought in any patients with unusual skin lesions.