Aquarium granuloma

Aquarium Granuloma is a skin condition caused by the bacterium Mycobacterium marinum. It is also known as Fish Tank Granuloma or Swimming Pool Granuloma. The condition is named for its common occurrence among individuals who maintain aquariums, but it can also be contracted from swimming pools, fish, and other aquatic environments.

Causes

The primary cause of Aquarium Granuloma is the bacterium Mycobacterium marinum. This bacterium is found in both fresh and salt water environments, including aquariums and swimming pools. The bacterium enters the body through cuts or abrasions on the skin, and is particularly prevalent among individuals who handle fish or maintain aquariums.

Symptoms

The symptoms of Aquarium Granuloma typically appear within two to four weeks after exposure to the bacterium. The most common symptom is a reddish or purple bump on the skin, often on the hands or arms. This bump may slowly grow and can develop into a skin ulcer. In some cases, the infection can spread to the lymph nodes and cause a condition known as lymphadenitis.

Diagnosis

Diagnosis of Aquarium Granuloma is typically made through a skin biopsy. The biopsy sample is examined under a microscope to identify the presence of Mycobacterium marinum. In some cases, a culture may be grown from the biopsy sample to confirm the diagnosis.

Treatment

Treatment for Aquarium Granuloma typically involves antibiotics, such as rifampin, ethambutol, and minocycline. The course of treatment may last for several months, and it is important to complete the full course of antibiotics to prevent the infection from returning.

Prevention

Prevention of Aquarium Granuloma involves avoiding contact with potentially contaminated water, particularly if there are cuts or abrasions on the skin. Individuals who maintain aquariums should wear protective gloves and wash their hands thoroughly after handling fish or cleaning the aquarium.