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Updated: Aug 5, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Mycobacterium marinum with associated bursitis
B Saadatmand1, J K Poulton, C L Kauffman
1University of Maryland, Department of Dermatology, Baltimore, Maryland USA.
Background:
Mycobacterium marinum infections have been reported for over 50 years, mostly in association with trauma in the setting of water exposure.
Objective:
The differential diagnosis for nodules in a sporotrichoid distribution with simultaneous bursitis is discussed. Mycobacterium marinum treatment regimens for skin and joint involvement are reviewed.
Methods:
Mycobacterium marinum was identified by skin tissue culture with Lowenstein-Jensen medium at 32 degrees C. Histopathologic findings support mycobacterial infection.
Results:
Bursitis and nodules resolved in the first 2 months of a 6-month course of minocycline treatment.
Conclusion:
Bursitis is an extremely rare but significant complication of M. marinum.
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