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Successful Treatment of Mycobacterium terrae Complex Infection of the Knee

Lembo, Giancarlo MD*; Goldstein, Ellie J. C. MD*†; Troum, Orin MD; Mandelbaum, Bert MD§

JCR: Journal of Clinical Rheumatology: October 2012 - Volume 18 - Issue 7 - p 359–362
doi: 10.1097/RHU.0b013e31826d1e11
Case Reports

Abstract: Mycobacterium terrae is an unusual, ubiquitous organism that can cause clinical disease in both immunocompetent and immunocompromised hosts and can be difficult to diagnose and treat. We report a case of a 61-year-old man with a septic knee whose arthroscopy cultures grew M. terrae. The patient was successfully treated using a 6-month regimen of clarithromycin and sulfamethoxazole. Mycobacterium terrae should be considered in the differential diagnoses for monoarticular swelling and pain of unknown etiology, especially in the setting of initially negative routine microbiological cultures.

From the *David Geffen School of Medicine at UCLA, Los Angeles; †R. M. Alden Research Laboratory, Santa Monica; ‡Keck School of Medicine/University of Southern California; and §Santa Monica Orthopedics, Santa Monica, CA.

The authors declare no conflict of interest.

Correspondence: Giancarlo Lembo, MD, Kaiser Permanente Fontana Medical Center, c/o Family Medicine Residency Program, 9961 Sierra Ave, Fontana, CA 92335. E-mail: ucrucla2012@gmail.com.

© 2012 Lippincott Williams & Wilkins, Inc.