Mycobacterium marinum infection in Adult
The typical skin lesion consists of a pustule or nodule and develops on an extremity 2-3 weeks after exposure. Nodules may ulcerate, suppurate, and spread via lymphangitic spread (about 25% of cases). In more severe infections, deeper manifestations such as tenosynovitis, arthritis, bursitis, or osteomyelitis may be seen. In immunosuppressed patients, disease can disseminate to the lungs or other systems; bacteremia is rare.
In general, the infection is usually mild and self-limited, and lesions may heal over a period of 1-2 years if left untreated, although treatment is recommended.
Related topics: Mycobacterium avium-intracellulare, Mycobacterium kansasii, Mycobacterium fortuitum, Mycobacterium chelonae, Mycobacterium scrofulaceum, Mycobacterium tuberculosis, and Atypical mycobacterial infections
A31.9 – Mycobacterial infection, unspecified
373438001 – Infection due to Mycobacterium marinum
Differential Diagnosis & Pitfalls