Signs and symptoms
Aquarium granuloma presents as a slow-growing, inflamed red bump (nodule or plaque) at the site of infection. It is characterized by a painful, itchy skin lesion, and may become ulcerated or crusted. Skin changes usually appear roughly three weeks after the aquatic exposure.https://www.aocd.org/general/custom.asp?page=FishTankGranuloma If this condition is acquired from an aquarium, then often the dominant hand is affected. If this condition is acquired from a swimming pool, then symptoms can also develop on trauma-prone body zones, such as the elbows, knees, feet and tip of the nose.Cause
For the infection to develop in humans, the two main factors required are exposure to contaminated water, and abrasion or injury to the skin. Hence, this infection is commonly seen in individuals who clean fish tanks, handle ornamental fish and work in wet fields.Pereira, C., Tauro, L. F., & Shetty, P. (2020). Aquarium granuloma: a diagnosis based on history. ''International Surgery Journal'', ''7''(6), 2036-2038. Aquatic systems with a high density of fish and warm waters appear to be conditions particularly favorable to this infectious agent, and increase the chances to contract fish tank granuloma. Poor water quality and various nutritional deficiencies are also possible contributing factors. Swimming pool granuloma can occur when there is inadequate chlorination of swimming pools.Diagnosis
Aquarium granuloma is relatively nonspecific in clinical presentation. Therefore, more common skin conditions, likePrevention
* Avoid fresh or saltwater activities if there are open cuts, scrapes, or sores on the skin, especially in water where this bacterium is known to exist. * Wear heavy gloves (leather or heavy cotton) while cleaning or processing fish, especially fish with sharp spines that may cause cuts to the hands and skin. Wash hands thoroughly with soap and water after fish processing or use a waterless cleanser. * Wear waterproof gloves while cleaning home aquariums or fish tanks. Wash hands and forearms thoroughly with soap and running water after cleaning the tank, even if gloves were worn. * Ensure regular and adequate chlorination of swimming pools to kill any bacteria that may be present.Treatment
Treatment involves the use of antibiotics. Since M. marinum has a high tendency for multi-drug resistance, treatment by one particular drug will not be effective. Often, up to six different antimicrobial regimes may be needed before the infection responds to a particular drug combination. This combination of antibiotics is based on the results of the culture and skin biopsy. The treatment can take up to several months. Surgery may also be needed to remove dead tissue if the lesions do not clear with antibiotics. This helps the wound to heal.Epidemiology
''Mycobacterium'' ''marinum'' infection is not contagious; it is not spreading from person to person. It is also not transmitted in hospitals like other common bacteria.See also
*References
External links
{{Gram-positive actinobacteria diseases Mycobacterium-related cutaneous conditions