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Hard growth on my senior Rottweiler's knee: Hygroma or bone cancer?

Updated On September 23rd, 2025

Pet's info: Dog | Rottweiler | Female | 6 years and 7 months old | 70 lbs

My 7 year Rotty jumps out of our truck which is quite high. She weighs 70Kg. A hard growth has formed around her knee. X rays should no broke breaks and she is not limping. Is this a Hygrometer and can it lead to bone cancer. Thank you Gina

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1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 3rd, 2017

Without being able to do a physical exam on Gypsy Rose, it is a little difficult for me to tell you what exactly is going on with her wrist. If it is very hard, then that could indicate that a small fracture did not heal properly, that her body is continuing to try to heal something in that area, or that there is bone cancer present. If it is soft, that could indicate a seroma (small pocket of fluid) or ongoing inflammation. Hygromas do not typically form in this area, but that is another possibility that would not necessarily turn into cancer. I would recommend that Gypsy Rose go back to the vet for additional x-rays. Rottweilers are prone to developing bone cancer, and I would want to make sure we caught it as early as possible. She may also benefit from anti-inflammatory medications

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