Tenosynovitis and Sporotrichoid Disease Due to M. marinum on a Patient under Anti-TNFα Therapy


There have been several reports of tuberculosis (TB) and, less frequently, of nontuberculous mycobacterial (NTM) infections in association with tumor necrosis factor α inhibitor (anti-TNFα) therapy. Mycobacterium marinum is a NTM with a distinct epidemiology and is infrequently responsible for disease in humans. Most commonly, it causes localized skin infections, but in 20% to 40% of cases, it involves deeper structures. Disseminated disease is exceptional and has been reported to occur only in immunocompromised patients. The authors report a clinical case of tenosynovitis and sporotrichoid disease due to M. marinum in a 45-year-old male patient under anti-TNFα therapies for spondyloarthropathy. Along antimicrobial therapy, the patient underwent surgical debridement and after two years he is still on treatment but substantially improved. A few cases of M. marinum infection occurring in patients treated with anti-TNFα drugs have been reported. The diagnosis of infection due to M. marinum requires a high index of suspicion from a properly obtained exposure history and is important so that efficient diagnostic approach and treatment are ensured.

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D. Póvoas, J. Machado and F. Maltez, "Tenosynovitis and Sporotrichoid Disease Due to M. marinum on a Patient under Anti-TNFα Therapy," Advances in Infectious Diseases, Vol. 3 No. 4, 2013, pp. 295-299. doi: 10.4236/aid.2013.34045.

Conflicts of Interest

The authors declare no conflicts of interest.


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