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Updated: Jan 25, 2026

Modeling Tuberculosis in Mycobacterium marinum Infected Adult Zebrafish
Published on: October 8, 2018
Slow-growing and Linearly Spreading Cutaneous Lesion: Often Misdiagnosed Mycobacterium Marinum Infection
Lakshmisree A Vemulakonda1, Jamie A Tschen2
1Pathology, University of Washington, Bothell, USA.
Abstract:
Mycobacterium marinum is a slow-growing atypical mycobacterium. It is a photochromogen; when exposed to light, it produces yellow pigment. In humans, it manifests as a localized granuloma or sporotrichotic lymphangitis. Patients at risk include anglers (commercial, recreational), oyster workers, swimmers, aquarium workers, and individuals with aquariums in their homes. Herein, we report a case of a Mycobacterium marinum infection which was misdiagnosed because there was no histopathological evidence of acid-fast bacilli and the slow growth rate in cultures.
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