That is unusual- fish typically heal completely unless there is an infection. Here is a thought; Mycobacterium are present in most tanks. Could the injury be a site for infection? They just changed the genus on some of these, but the commonly seen species are fortiutum and cheolonae. That could be a granuloma?6-8 weeks ago I noticed my Annularis got sliced on his side by one of the tangs. I never showed any signs of secondary infection but was did form hypergranulated tissue. It appears healed at this point but has a significant amount of hypergranular tissue/keloid. I have no concern about the fish but just curious on why this would occur. As a surgeon I know why it occurs in humans but not as well versed in fish!
So - basically, yes - atypical myco can be cultured from seafoods (it is sometimes called fish handler’s disease) and even swimming pools, as well as soil. Trying to eliminate it from an aquarium isn’t possible. Usually, fish can fend it off. I do see older fish dying with histopath showing acid fast granulomas that if cultured, would probably show myco (but the cultures take so long to grow, I don’t usually try that).
Thanks for your insight! Trying to think back on some micro and histology classes from like 16 years ago! Will reacquaint myself with myco and yank some old med school books down from the shelf tonight!
So best to keep him isolated in his own tank. Also continue food laced with vitamins and beta Glucan. Any benefit to adding vitamin C?
What ultimately is the definitive treatment? If it is a sarcoma of some type is there any realistic treatment? In humans we use chemo, radiation and amputation when feasible.
It doesn’t appear like lymphocytis from my vantage point either. Have a Queen angel who once had that.
