I found a lump on my cat's back last night. It's about 2 inches below her shoulder blades and is about the size of a 2p. She had her annual check up and vaccinations last week and the vet commented that she had lost half a kilo since last year. I put this down to us having changed her food from canned food to Canagan. However, I think she has lost even more weight in the past week and her sides look quite sunken in now although her appetite hasn't altered.
She doesn't seem distressed or ill but doesn't like the lump being touched. I can't see any signs of injury or inflammation where the lump is.
We have got an appointment for her tomorrow afternoon but wondered if anyone had any experience of this or any ideas what it might be.