Terminology Lymphoma is a very common cancer in dogs and cats This information is not meant to be a substitute for veterinary care. Always follow the instructions provided by your veterinarian. Because lymphocytes are scattered through all organs, lymph cancer can occur in any organ.
Lymphoma occurs commonly in both dogs and cats.
Although most cancers occur in older animals this type of cancer can occur in young animals as well although less commonly than in the older animal. Certain breeds of dogs develop lymphoma more often than others. There are several forms of this cancer that require different diagnostic tests and respond differently to treatment. Lymphoma occurs in several different forms, which result in different signs. There is overlap across these forms and some animals may have mixtures of different forms.