I have a great book that I highly recommend for dogs with cancer. "Dog Cancer The Holistic Answer" by Dr. Steven Eisen. I have a 3 year old Boxer that was diagnosed with osteosarcoma. After following the protocol in the book she is now in remission. Our vet said that she has seen tumors calcify, but she's never seen them shrink. Fiona's was about 2 inches in diameter and it's now almost completely gone. When you buy the book it comes with access to a companion website. Lots of great info! Best of luck to you!
My dog died of cancer but I had not heard about this book. Just read about it on grassland beef where I buy my (people) organic meat and also pet hamburger.