Mycobacterium marinum infection in a lung transplant recipient
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Updated: Oct 8, 2026
Murine Intrapulmonary Tracheal Transplantation: A Model for Investigating Obliterative Airway Disease After Lung Transplantation
Published on: November 10, 2023
F Torres1, T Hodges, M R Zamora
1Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Health Sciences Center, Denver, Colorado, USA.
Abstract:
We report a case of Mycobacterium marinum infection in a lung transplant recipient who presented with nodules on the hand and forearm following exposure to fish-tank water of a superficial hand burn. Skin biopsy revealed granulomatous inflammation and fibrosis. Tissue culture grew Mycobacterium marinum. The patient underwent surgical excision of the lesions and treatment with ethambutol and azithromycin for 12 months and experienced complete resolution of the infection. Transplant recipients who receive immunosuppressive therapy are at increased risk for opportunistic infections. For a patient with nodular lesions on the extremities, exposure to fish, fish-tank water, or swimming should suggest infection with Mycobacterium marinum.
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