Coinfección de tuberculosis pulmonar y nocardiosis pulmonar

Coinfection with Mycobacterium tuberculosis and Nocardia is rare, with a prevalence between 1-6%, and is more frequent in patients infected with HIV. Clinical and radiological manifestations of nocardiosis and pulmonary tuberculosis are very similar, making difficult the diagnosis and delaying the specific treatment. There are few cases reported in the literature. We report 3 cases of patients who presented with pulmonary tuberculosis-compatible data, whose sputum Ziehl-Neelsen staining test revealed acid-fast bacilli compatible with Mycobacterium tuberculosis and Nocardia. Specific treatment resulted in clinical improvement.