My vet just called with Harley's biopsy results. She had a tumor removed last week. She said it is a fibro sarcoma, a form of cancer. She also said it is locally invasive, that it doesn't tend to spread to the organs. But that the tumors can return and we have to do monthly checks on her leg for more tumors.
I am going to do a search on it but also was hoping you might have any info and/or experience in it. I am a bit shaken by the news.