Mycobacterium Marinum with Associated Bursitis

Abstract

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°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.