Annals of Clinical Microbiology, The official Journal of the Korean Society of Clinical Microbiology

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pISSN 2288-0585 eISSN 2288-6850

A Case Report of Tsukamurella pulmonis Infection Misidentified as Atypical Mycobacteria

Case report

Annals of Clinical Microbiology (Ann Clin Microbiol) 2010 June, Volume 13, Issue 2, pages 93-97.

https://doi.org/10.5145/ACM.2010.13.2.93

A Case Report of Tsukamurella pulmonis Infection Misidentified as Atypical Mycobacteria

Ah Ra Cho1, Hye Ryoun Kim1, Mi-Kyung Lee1, Seong Ho Choi2, Sin Weon Yun3
Departments of 1Laboratory Medicine, 2Internal Medicine and 3Pediatrics, Chung-Ang University College of Medicine, Seoul, Korea

Abstract

We report a case of catheter-related bacteremia due to Tsukamurella pulmonis. T. pulmonis is a rare cause of opportunistic infection in immunosuppressed patients and in cases of indwelling foreign materials. This infection was nearly impossible to identify using conventional phenotyping methods because of its similarities to the related genera Nocardia, Rhodococcus, Gordonia, Streptomyces, Corynebacterium, and Mycobacterium. This organism was initially misidentified as Mycobacterium aubagnense through PCR-RFLP analysis. We correctly identified this organism using 16S rRNA sequencing combined with phenotyping tests. (Korean J Clin Microbiol 2010;13: 93-97)

Keywords

Tsukamurella pulmonis, Catheter, Bacteremia, Korea, Misidentification, Mycobacteria