Meg, our 10 year old terrier has a now very large fatty growth under her chest. We have had another smaller surface growth removed previously, but have not had this one removed because of how invasive the procedure would be. This one has been growing for a couple of years and have consulted our vet every checkup. Our decision was to not have this removed but keep a watchful eye to make sure she was not in pain. Well it's now gotten large enough so her leg is turned out making her foot tow in. She still doesn't seem put off by this at all, still runs, jumps, goes up and down stairs etc. It doesn't bother her at all to touch the area or move her leg. Anyone else on here ever experienced this?