How we figure out what a lump is?

 

1) Your vet will usually start with a fine-needle aspirate (FNA) or a biopsy to identify the tumour type.

 

2) After any removal, a pathology report tells you whether the mass was taken out with clean (“complete”) margins—i.e., no tumour cells at the cut edge. Clean margins generally mean a lower chance of regrowth for most tumour types. Early work-up and good first-time surgery matter a lot for cats, because some feline tumours (especially injection-site sarcomas) send microscopic “fingers” farther than you can see or feel.