Thanks everyone,

Bear has always had a weight problem which is probably where he's getting all the cysts. He weighed about 110lbs (~30lbs overweight) when we first got him, we've now managed to drop him to 85 lbs which is what he's holding. He's on Science Diet R/D and even that has to be cut with green beans or he'll gain weight. I walk him 3 X a week, but because he has arthritis in his backlegs excersize is a little bit limited with him. We always have the cysts checked, it's gotten to the point when the vet sees our name on the appointment list she walks in carrying a couple of syringes and slides w/o even asking...