Just posted on another thread, but here is what I wrote on that one. My girl had a cyst, no cancer, I had no money for surgery $650, I got care credit for $500 and my friends raised the rest, all in half hour.
I just went through this the end of April, You can look under Prayers for Booger in ER. The vet found a large mass on her right side. We didn't think she would make it through surgery, but she did. She had a big cyst and eggs forming. Total weight of both was 108 grams. Stupid me I took her to a vet while in Oregon and he said she was fine, I waited 2 moths later, once I noticed she lost weight, her legs are getting skinny and lost all her fad pads, hard to breath and wasn't eating. When he opened her up, he called and said she might not make it, an hour later he called to say she made it through surgery and doing fine. Now she is spayed so no worries of eggs. I had a great vet who saved her life and now 6 weeks later she is doing so good. Good luck to you and your girl.