Lymphoma, or lymphosarcoma, is a cancer of the lymphocytes, a type of white blood cells. It affects cats and dogs. Treatment can help your pet feel better. Read more here.
Lymphosarcoma in cats generally begins in other parts of the body, such as the intestinal tract or the lymphatic system. From there, it can occasionally spread to the skin. Lymphoma is associated with infection by feline leukemia virus.
...resulted in a bimodal age distribution of one or both superficial cervical lymph nodes within the chest and for our cases, and the lower median age node(s) in cats with mediastinal abdomen, and concurrent infiltration of of cases with mediastinal involvement lymphosarcoma. the liver...

In both dogs and cats, gastric lymphosarcoma is commonly a part of more diffuse gastrointestinal lymphosarcoma, but can be seen as a solitary tumor in the stomach. Extramedullary plasmacytomas have been described in both dogs and cats as primary gastric or bowel tumors.
Lymphoma, also known as a lymphosarcoma or LSA, is common in cats and is caused by a cancerous proliferation of lymphocytes, or white blood cells that normally function in the immune system. Any breed of cat can develop lymphoma.

Feline Intestinal Lymphosarcoma is a malignant. cancer often seen in older cats. The cancer usually. originate in the lymph nodes located within tissues.