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Persistent, sterile necrotizing granulomatous dermatitis following treatment of 20-year Mycobacterium marinum infection

Year: 2024

Type: article

Abstract: Mycobacterium marinum is a rare cause of human infection, with an annual incidence of 2.7 per 100,000 in the United States.1 The slow-growing organism inhabits aqueous environments, infecting injured skin. Sources of exposure include aquariums, contact with marine animals, and salty or brackish water. M marinum infection is typically confined to the skin and soft tissues in immunocompetent individuals.2 Most incidents (90%) are in the upper extremities.3 Poor sensitivity of bacterial culture and lack of a standardized antibiotic regimen make diagnosis and treatment difficult.

Source: JAAD Case Reports

DOI: 10.1016/j.jdcr.2024.08.028