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Updated on September 23rd, 2025
Pet's info: Dog | Bernese Mountain Dog | Female | 8 years old | 90 lbs
My dog was just diagnosed with lymphoma All of her lymph nodes are swollen She is acting like there is nothing wrong with her. What stage of lymphoma would she be considered to have
2 Answers

Answered By Shaneez Wallani, DVM
Veterinarian
Published on June 30th, 2017
Answered By Jennifer Summerfield, DVM CPDT-KA
Veterinarian, Certified Dog Trainer
I'm very sorry for Fendi's diagnosis! Lymphoma is staged from 1 to 5, with 1 being the least severe and 5 being the worst. If Fendi has multiple enlarged lymph nodes in various parts of her body, this would make her at least a Stage 3. She might be a Stage 4 or 5, depending on whether or not any of her internal organs or bone marrow is involved - additional testing would be needed to determine this, including abdominal x-rays and ultrasound, bone marrow aspiration, etc.
Dogs with lymphoma are also assigned a "substage" of a or b depending on whether they have any symptoms of illness or not. Since Fendi is acting completely normal, this would likely make her a substage a. So all told, it sounds like she would be Stage 3a, 4a, or 5a depending on the factors discussed above.
There are other things that influence the prognosis and possible treatment options for dogs with lymphoma, such as whether her cancer is B-cell or T-cell lymphoma - there are specialized lab tests that can be ordered to check for this. Many dogs with lymphoma do respond well to chemotherapy, so if you're interested in pursuing treatment for Fendi, I would definitely suggest asking your veterinarian for referral to a veterinary oncologist - he/she can evaluate Fendi in person as well as all of her lab results, and will discuss her situation and treatment options with you in more detail.
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