Thank you both for your responses I really appreciate them.
The pathologist said they did find adjuvant at the injection site. I wasn't really surprised considering she had just received her rabies vaccine at that location in November. The oncologist did a full biopsy last week Thursday of the mass which she said was about the size of a pea. I keep hoping that the mass is just a granuloma
Is it possible that if this is cancer, but was caught early enough, and if enough surrounding area was surgically removed that my cat can live out her remaining years cancer free? Besides surgery what other treatments have had the best results?