Originally Posted by
MoAlpha
Very interesting. Are dog noses vulnerable because they get put so many interesting places? We see a lot of crypto in congenital and induced immunological deficits, but I don't recall an isolated sinus mass. Prof. Google says it happens to humans.
Common in my practice in cats, uncommon in dogs.
Cats are most likely to have nasal or sinus infections but sometimes I see them for pure CNS signs. Very little inflammatory reaction, meningitis happens but is not a prominent feature of the disease. Mostly in cats, the infection causes a granuloma which in clinical presentation mimics a brain tumor, although its sometimes seen in younger patients.
Dogs can have crypto anywhere in the body, and its more likely to be a diffuse or mutifocal disease rather than a granuloma like this dog has.
Typically crypto is seen in incompetent animals even though cats can be infected with a chronic HIV-like virus called FIV. Because dogs usually have systemic disease, they tend to do worse with crypto when compared with a cat. But cats with large granulomas often do really well, they just need years of fluconazole, maybe lifelong. I am hopeful this dog will do well because he has a solitary granuloma. But only time will tell for sure.