Cytopathic effect mimicking virus culture due to Mycobacterium tuberculosis

Mycobacterium tuberculosis grew, from a bronchoalveolar lavage of a patient with AIDS, on a gentamicin-supplemented cell culture monolayer, causing a focal and slowly spreading cytopathic effect resembling that of a virological isolate. The same effect was observed after inoculation of two different inocula of M. tuberculosis onto the same cell culture.