Midnight is a 13-15 year old feral cat who has lived in our basement for the past 10 years. She is friendly with the other cats but doesn't want to be touched. Every year we "capture" her and take her for shots and examination. She had her shots in December and seemed fine but recently we've seen a few drops of pink discharge in the kitchen and in her bed. We captured her again and took her to the vet and he found a large tumor on her hip and said it was probably an injection site sarcoma. It was open at the top and that was what was seeping. I asked him if he could do surgery but he wasn't willing to due to her age and the size of the base. We have thought about taking her to a specialty hospital for surgery (in January we took our Maltese for removal of a mast cell tumor and we really trust and like the vet and the facility). However, our Maltese came back with an 8 inch incision and had to be watched and handled carefully fior about two weeks. If he will operate on Midnight she will have to stay at the vet's so they can monitor her or at least in a cage at home so we can medicate her and whatever else we will have to do. We are concerned that will be too stressful for her and maybe we should do nothing. We feel so guilty but since we can't handle her we didn't know it was there. She is still eating and drinking and behaving as usual. The vet said this is a one in 10,000 occurrence but my pet sitter told me her cat died of the same thing. Would you do the surgery or not?