Mycobacterium microti llama-type infection presenting as pulmonary tuberculosis in a human immunodeficiency virus-positive patient.

A rare case of Mycobacterium microti infection in a human immunodeficiency virus-positive patient is described. Because of unusual morphological and cultural features, the pathogen was analyzed by spoligotyping and identified as the Mycobacterium microti llama type. Although culture of M. microti is difficult, drug susceptibility testing could be performed, which correlated with the clinical outcome.