There are two types of lung cancer that affect cats: primary lung tumors and metastatic lung tumors. Primary lung tumors, which originate in the lung, are incredibly rare in cats. The number of cases of primary lung tumors in cats has increased in recent years, though the exact reason for the increase is unknown. Metastatic lung tumors are a secondary type of lung cancer that originally forms in another part of the body and spread to the lungs. Both types of lung cancer primarily affect cats that are over ten years of age. The symptoms of lung cancer may differ depending on where the cancer originated, how aggressive it is, and whether or not the affected cat has suffered from prior lung disease. Symptoms may manifest in different ways, and some may not appear at all. The first symptoms we noticed were a drastic reduction in eating, first, and then drinking, over the span of about 3 days in April. Amanda continued to not eat and then became dehydrated badly so we took her to emergency vet. Our cats have been lifelong indoor/outdoor cats, so it is more difficult to notice vomiting/diarrhea than in indoor kitties. Still, we did notice Amanda vomiting yellow-bile like vomit, about twice a week at first, then more frequently. Well, after emergency hydration, she went to vet for x-rays. Her weight was down from normal 9 pounds to 8 pounds. Her appetite picked up for only about 2 days, then tapered off drastically again. Results were very inconclusive, lymphoma, IBD, pancreatitis, and other possibilities were discussed but nothing definitive at all. She was given Prednisone shot, perked up for a few days, tailed off, went back to vet for prednisone pills. But generally her eating would decrease, and by mid-May her weight was down to 7.5 pounds.
Last spring I wrote about canine lymphoma, so in honor of Cancer Awareness Month, I thought I would do the same for feline lymphoma. Lymphoma in cats most commonly affects the gastrointestinal tract, although since the immune system is distributed throughout the body, lymphoma can be seen in any organ in the body including the eyes, in front of the heart, and in the kidneys, liver or spleen. The immune system is distributed throughout the body to protect against infections. Unlike canine lymphoma, feline lymphoma rarely occurs in the lymph nodes. In cats (and also humans) it is not a single disease, but is probably more than 20 different diseases; each of the 20 or so forms of lymphoma behaves somewhat differently and the prognosis varies between types. The most common form of lymphoma we see in cat intestines is called small cell lymphoma. We also see an intestinal variant called large cell lymphoma. The photomicrograph on the right shows a rare form of feline lymphoma called large granular lymphoma. Lymphoma is a type of blood cancer that occurs when lymphocytes proliferate uncontrollably. Lymphocytes are white blood cells that protect the body from infection. In cats, lymphoma typically affects the: Feline leukemia virus (Fe LV) was one of the leading causes of lymphoma in cats until the development of the Fe LV vaccine. Therefore, the Fe LV vaccine not only protects cats against Fe LV, but indirectly also protects them against certain forms of lymphoma. Besides being occasionally preventable, lymphoma is also one of the most treatable cancers. Chemotherapy is the standard treatment for most forms of lymphoma and cats treated for lymphoma typically have a very good quality of life. Lymphoma is typically very responsive to chemotherapy and studies show up to 75% of cats treated with chemotherapy will go into remission, according to Squamous cell carcinoma (SCC) is another common type of feline cancer.
Our cats have been lifelong indoor/outdoor cats, so it is more difficult to notice. her steroid treatment were actually "treating" the cancer.it's just that prednisone. The purpose of this study was to determine if there is a difference between the pharmacokinetics of prednisone and prednisolone when given orally to cats.