What size do a dog's lymph nodes get when diagnosed with lymphoma?

Question

Does a lymph node have to reach a certain size before one could say that it is lymphoma? How big are lymph nodes usually when the diagnosis is lymphoma? Pet's info: Dog | Mixed Breed | Male | unneutered | 4 years and 10 months old | 20 lbs

Dr. B. DVM, DACVIM (Oncology) · Accepted Answer

Not necessarily as other disease processes can cause lymph node swelling. Every case is different and some dogs have mild lymphadenoapthy at diagnosis and others have significant lymphadenopathy. In general however reactive lymphadenopathy is usually more mild. If lymphadenopathy is suspected it is important to rule out other causes such as systemic diseases (tick borne, fungal, etc.) especially in a young dog in certain parts of the country (or with a travel history), allergic skin disease, etc. Ultimately needle sampling of the lymph nodes is an initial step but will not always diagnose all cases. There are also different types of lymphoma with different presentations, prognoses, and treatment approach. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

What size do a dog's lymph nodes get when diagnosed with lymphoma?

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