Strange 'Balls' on my Guinea Pig

[Phoebe]

Update on Phoebe:

She is still doing fine. No change in behavior or health at all since her diagnosis. I can't believe that she has cancer, actually. (Beyond the presence of the tumors anyway.) I am giving her extra vitamin C, and I feed her an organic diet. Could this make a big difference?
How fast would mammary cancer kill a guinea pig? Are there any good articles that anyone knows of on it?

[Lynx]

Good to hear she is doing well! Good food helps but more likely is your vet misdiagnosed lymphoma, despite an educated guess due to their being lumps near the lymph nodes.

Mammary tumors are often benign. They are usually just under the teats. Since her lumps were in several locations, maybe not mammary tumors.

[Phoebe]

Oh. Well I hope so. It's sounding like thats better than mammary cancer.

[ItsaZoo]

So glad to hear Phoebe is still doing well. Thank you for posting an update, especially such good news.