Misidentification and diagnostic delay Caused by a false-positive amplified Mycobacterium tuberculosis direct test in an immunocompetent patient with a Mycobacterium celatum infection.

The Gen-Probe amplified Mycobacterium tuberculosis direct test can give discrepant results directly in respiratory or cultured samples from patients infected with Mycobacterium celatum, leading to inappropriate therapy for, in our case, an immunocompetent patient.