What is the role of skin tests in the workup of mycobacterium chelonae infection?

Updated: Dec 20, 2018
  • Author: Alfred Scott Lea, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Skin testing with nontuberculous mycobacterial specific antigens is nonspecific and generally not indicated. These tests are not commercially available.

A positive standard PPD test result may raise suspicion for an unsuspected M tuberculosis infection.

A biopsy for localized or disseminated skin lesions should be performed. Specimens for AFB and fungal cultures should be sent, as well as histopathology. The microbiology laboratory needs to be alerted of the concern for atypical organisms since the organism can be overlooked as a pathogen.


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