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''' | {{short description|A skin infection caused by ''Mycobacterium marinum''}} | ||
'''Aquarium granuloma''', also known as '''fish tank granuloma''', is a skin infection caused by the bacterium ''[[Mycobacterium marinum]]''. This condition is typically associated with exposure to aquatic environments, particularly those involving fish tanks or aquariums. The infection is characterized by the development of granulomatous lesions on the skin, often on the hands or arms, where contact with contaminated water or fish has occurred. | |||
==Pathophysiology== | |||
''Mycobacterium marinum'' is a non-tuberculous mycobacterium that thrives in aquatic environments. It is closely related to ''[[Mycobacterium tuberculosis]]'', the bacterium responsible for tuberculosis, but it primarily affects the skin rather than the lungs. The bacterium enters the body through small cuts or abrasions in the skin when an individual handles fish or cleans aquariums. Once inside the body, it causes a localized infection that leads to the formation of granulomas, which are small areas of inflammation due to the immune system's response to the bacteria. | |||
== | ==Clinical Presentation== | ||
The infection typically presents as a single or multiple nodular lesions on the skin, often appearing as reddish or purplish bumps. These lesions are usually painless but can become tender or ulcerated over time. The most common sites of infection are the hands, fingers, and forearms, reflecting the areas most likely to come into contact with contaminated water. | |||
==Diagnosis== | |||
Diagnosis of aquarium granuloma is based on clinical presentation, patient history, and laboratory tests. A skin biopsy may be performed to identify the presence of ''Mycobacterium marinum'' through culture or molecular techniques such as polymerase chain reaction (PCR). It is important to differentiate this condition from other skin infections and granulomatous diseases. | |||
== | ==Treatment== | ||
Treatment of aquarium granuloma involves the use of antibiotics effective against ''Mycobacterium marinum''. Commonly used antibiotics include clarithromycin, doxycycline, and rifampin. Treatment duration can be lengthy, often requiring several months to ensure complete eradication of the bacteria. In some cases, surgical intervention may be necessary to remove persistent lesions. | |||
==Prevention== | |||
Preventive measures include wearing protective gloves when handling fish or cleaning aquariums, and ensuring that any cuts or abrasions on the skin are covered. Maintaining good hygiene and regularly cleaning aquariums can also reduce the risk of infection. | |||
== | ==Related pages== | ||
* [[Mycobacterium marinum]] | |||
* [[Granuloma]] | |||
* [[Skin infection]] | |||
* [[Non-tuberculous mycobacteria]] | |||
==Gallery== | |||
<gallery> | |||
File:Infektionsgranulom_Hand_-_Infektion_mit_Mycobacterium_marinum.png|Granulomatous lesion on the hand caused by ''Mycobacterium marinum''. | |||
</gallery> | |||
[[Category: | [[Category:Skin conditions resulting from physical factors]] | ||
[[Category: | [[Category:Mycobacterium-related cutaneous conditions]] | ||
Revision as of 18:07, 11 February 2025
A skin infection caused by Mycobacterium marinum''
Aquarium granuloma, also known as fish tank granuloma, is a skin infection caused by the bacterium Mycobacterium marinum. This condition is typically associated with exposure to aquatic environments, particularly those involving fish tanks or aquariums. The infection is characterized by the development of granulomatous lesions on the skin, often on the hands or arms, where contact with contaminated water or fish has occurred.
Pathophysiology
Mycobacterium marinum is a non-tuberculous mycobacterium that thrives in aquatic environments. It is closely related to Mycobacterium tuberculosis, the bacterium responsible for tuberculosis, but it primarily affects the skin rather than the lungs. The bacterium enters the body through small cuts or abrasions in the skin when an individual handles fish or cleans aquariums. Once inside the body, it causes a localized infection that leads to the formation of granulomas, which are small areas of inflammation due to the immune system's response to the bacteria.
Clinical Presentation
The infection typically presents as a single or multiple nodular lesions on the skin, often appearing as reddish or purplish bumps. These lesions are usually painless but can become tender or ulcerated over time. The most common sites of infection are the hands, fingers, and forearms, reflecting the areas most likely to come into contact with contaminated water.
Diagnosis
Diagnosis of aquarium granuloma is based on clinical presentation, patient history, and laboratory tests. A skin biopsy may be performed to identify the presence of Mycobacterium marinum through culture or molecular techniques such as polymerase chain reaction (PCR). It is important to differentiate this condition from other skin infections and granulomatous diseases.
Treatment
Treatment of aquarium granuloma involves the use of antibiotics effective against Mycobacterium marinum. Commonly used antibiotics include clarithromycin, doxycycline, and rifampin. Treatment duration can be lengthy, often requiring several months to ensure complete eradication of the bacteria. In some cases, surgical intervention may be necessary to remove persistent lesions.
Prevention
Preventive measures include wearing protective gloves when handling fish or cleaning aquariums, and ensuring that any cuts or abrasions on the skin are covered. Maintaining good hygiene and regularly cleaning aquariums can also reduce the risk of infection.
Related pages
Gallery
-
Granulomatous lesion on the hand caused by Mycobacterium marinum.
