The clinical and microbiological finding of 34 patients with HIV infection and tuberculosis (30 were men), 32 were intravenous drug addicts. Fever, adenopathies, hepatomegaly and splenomegaly were the most encountered manifestations on admittance. 61.8% had a disseminated form of tuberculosis; the main locations were lymphatic (73.5%) and lung (64.7%). The detection of circulating viral antigen was associated with disseminated form of tuberculosis.