My cat, Lila, is only seven years old, a rescue, and has been a very nervous cat her whole life, and we've been working hard to bring her out of her shell. We've made real progress, but I wanted to eventually see her letting my friends stroke her (she hardly even sits on my husband, let alone someone from outside the house).
Yesterday we found out that the tiny lump I discovered on her jaw a fortnight ago, is actually squamous cell carcinoma. I am distraught. With the positioning of it right in the "hinge" of her jaw, the vet thinks it would be impossible to excise with a safe margin without actually removing her jaw entirely, and chemotherapy wouldn't be a viable option either.
He offered a referral to a specialist oncologist vet, but it will be very expensive (she's not insured) and the result will most likely be the same even with a specialist. I'm told even when the tumours are removed, in 90% of the case the tumours return anyway

Right now, she's happy and playful, and normal. It's not effecting her life at all really, she just has a sore mouth (we have Metacam for that) and isn't eating much... I can't believe my happy healthy looking cat has cancer.
Does anyone know how long she could live with the tumour as it is? It's probably, roughly the size of a chickpea, guessing from what I can feel on the outside (it upsets her to open her mouth to look).
We feel it would probably be cruel to put her through treatments that won't actually save her, and will just prolong the suffering, as in her case she is a very anxious cat, and has hardly spent a day in her life away from us, and is terrified of the vet. (I'm agoraphobic so I'm with Lila nearly 24/7..)
I feel so helpless and I don't want to watch her fade away. When it comes time, we will do what needs to be done, but I hurt so much... I've never cried so much. It might seem silly but she's my world and my best friend.
Can anyone just say.. anything.. of comfort? Any advice that's practical is good too. I'm hoping we still have some time to be together yet- she was running around and playing like a kitten last night! She's too young for this. Even my vet was surprised- he really didn't think the biopsy would give this result...
EDITED to change title of thread