I'm sorry to hear that Denny.
I have a yellow lab and had a growth removed from her side. The vet sent it off to LSU and it came back positive for cancer. Right now she runs around like everything is fine, but I dread the day, especially for my daughter. To top it off, she is on siezure medication and incontinence meds as well. I tend to think the flea and tick control chemicals we dose them with contributes to it.