Fatal Mycobacterium abscessus endocarditis misidentified as Corynebacterium spp.

@article{Williamson2010FatalMA,
  title={Fatal Mycobacterium abscessus endocarditis misidentified as Corynebacterium spp.},
  author={John C. Williamson and Todd A Miano and Michael R.A. Morgan and Elizabeth L Palavecino},
  journal={Scandinavian journal of infectious diseases},
  year={2010},
  volume={42 3},
  pages={222-4}
}
The microbiological similarities of rapidly growing mycobacteria and corynebacteria impose potential for misidentification in the laboratory. This report describes a fatal case of infectious endocarditis caused by Mycobacterium abscessus, initially identified and treated as Corynebacterium spp. Acid-fast staining should be performed routinely when multiple blood cultures grow Corynebacterium spp.