fish-tank granuloma

swim·ming pool gran·u·lo·ma

a chronic, verrucous lesion most commonly seen on the knees; due to infection by Mycobacterium marinum.
Synonym(s): fish-tank granuloma

fish-tank granuloma

A popular term for clinical infection by Mycobacterium marinum, which is typically acquired by direct inoculation from fish tanks (80+% are aquarium-related), presenting 2–3 weeks after injury.
References in periodicals archive ?
Differential diagnoses include, depending on the phase of the disease, anthrax, atypical mycobacteriosis, cowpox, pseudocowpox (Milker's nodule), pyoderma, herpetic whitlow, tularemia, keratoacanthoma, fish-tank granuloma, and sporotrichosis [1, 2, 8].
In humans, the organism is associated with a cutaneous disease called "fish-tank granuloma," which is frequently contracted from contact with aquariums (16).