My lovely cat is 13 and has a lump kind of on the side of her neck between her ear and shoulder. It's been there for a few months but I wasn't really worried as its not fixed and is very round, I just assumed it was a cyst. It doesn't bother her at all and she's a very young 13 in every way. I have kept an eye on it and a couple of nights ago I thought it seemed slightly bigger so I took her to the vets. I thought they'd say it's a cyst and just drain it but they want to operate and take it off. Does anyone have any experience of this? I'm so worried about her.