Quote Originally Posted by Glacier
Doesn't matter. Paxil's tumors would stay the same size for long periods of time. Then they would grow like crazy and shrink again. They were still cancerous and life-threatening. Mast cell tumors can respond to stress and being touched. If I had left them longer, they would have gone from just under to her skin to invading her internal organs. She would no longer be with me. She got proper treatment and is thriving.

Regardless, your dog needs to see a vet. You aren't going to get an answer posting on the internet. A real, live, trained vet needs to see her and the sooner the better.
I know...... I've gotta see a vet. But I thought that if it were getting smaller, that it might be getting better. ( what's wrong with hopeful thinking ?! )

Does ( the part I bolded ) mean that it would be touch-sensitive? Because she'll let me touch it, pull it, squish it and try and examine it at length.