Harley's biopsy

We have a very sweet, very senior boy named Harley. Harley is a Samoyed and before his shave down, was the very model of fluffy. Harley is believed to be 10-11 years old and he has had a few issues crop up. The first, his teeth, we repaired. The second, the hot spots, we got under control with a shave down. This, the third, needs more help. Harley has a growth on his back foot that needs to be removed surgically and biopsied. We are hopeful it is nothing major, but we have to know before we can send him to a home. Cross your fingers.