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My 8-year-old greyhound has a bony knee lump. Is it osteosarcoma?

Updated On September 23rd, 2025

Pet's info: Dog | Greyhound | Male | neutered | 8 years old | 80 lbs

Hello - my 8 year old male greyhound has a boney lump that appeared earlier this week. Its in his knee area - back leg. He isn't limping and doesn't seem in pain. I'm worried about osteosarcoma. I've been watching him for now to see if it gets any bigger or if I notice a lump. If that happens I will take him to the vet for an x-ray. Do you think it could be osteosarcoma or could it be something else ? Thanks

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 2nd, 2019

I would not wait to take Norman into a vet to see if it gets bigger. Any suspicious lumps needs to be checked out by a vet promptly. It may be osteosarcoma, and if it is, the sooner he's seen, the better for him.

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