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Cat Stomach Tumor

Veterinarian Reviewed on April 1, 2014 by Dr. Janice Huntingford

Cat Stomach Tumor

The most common tumors that veterinarians find in a cat’s stomach is adenocarcinoma. Other types that have been found are lymphoma, mast cell, leiomysarcoma, fibrosacroma, plasmacytoma and extramedulary.

Adenocarcinomas frequently metastasize to the lymph nodes. The lymph nodes will lead to the liver and other organs. Combined, these tumors make up about 1% of all malignant tumors. Most cats get Cat Lymphoma Cancer. Stomach tumors affect elderly cats as well as male cats.

Signs and Symptoms

Bloody Cat Vomiting is the most common symptom of a stomach tumor in cats. Digestion is impaired and therefore Cat Loss of Weight is evident. Your cat will also exhibit signs of weakness and lethargy due to poor nutrition.


The most accurate diagnostic test is a gastroscopic examination. A very small tube is inserted in your cats mouth and then into their stomach. The veterinarian can then see the status of the stomach and can note the presence of a tumor. Your cat will be sedated for the entire procedure. During the procedure your veterinarian can obtain biopsy of the actual tumor to determine if the tumor is cancerous or not.

Treatment Options

For all tumors except lymphomas, surgery is the treatment of choice. It the tumor is within the stomach and has not spread to other areas, your cat will definitely benefit from the surgery. For the most part, this is not a cure; it is merely a procedure that will increase your cats comfort and nothing more. A lot depends on the type of tumor, the stage of the disease and whether or not it has metastasized to surrounding tissue or other organs.

Cat Radiation Therapy and Cat Cancer Chemotherapy are not recommended for treatment of stomach tumors.

Home Care

Your cat will be in obvious pain. It is up to you, the owner, to follow your veterinarian’s recommendations and administer pain medicine at regular intervals. You don’t want your cat to suffer in silence and become reclusive. That is the normal behavior for cats that are in pain. Pain prevention is the desired activity. Keep in mind that it is far easier to prevent pain than to relieve it. Administering medication as prescribed can give your cat a much better quality of life during treatment, after treatment and as long as you are with your cat giving it Cat Palliative Cancer Care. Cancer itself is painful. The treatment is equally painful at times.


It is vitally important to maintain a good nutritional status in your cat. Not eating due to the tumor can cause malabsorbtion of protein and cause wasting. As your cat begins to lose weight, her immune system may be going right along with it. You need nutrients to maintain a healthy body. Often vitamin and mineral supplements, as well as Cat Cancer Dietary Supplements, may be ordered to maintain adequate nutrition. High protein diets are a necessity. Finding the right food is important. It may be best to prepare your cat’s food in your own home to ensure that your cat is fed a proper Cat Cancer Diets.
Finding a veterinary oncologist may be a good first step after diagnosis. Their research and abilities are on the front line of cancer treatment. Many are located within veterinary colleges. To find a veterinary oncologist, you may want to do a web search for locations that are within your home area or drivable distance.

Additional Cat Cancer Pages

Cat Cancer | Cat Skin Cancer | Cat Lung Cancer | Cat Pancreatic Cancer | Cat Cancer Prevention | Cat Cancer Diagnosis | Cat Gastric Cancer | Cat Lymphoma Cancer | Cat Squamous Cell Carcinoma | Cat Mouth Cancer | Cat Brain Tumor | Cat Palliative Cancer Care

Read also: Cat Nasal Chondrosarcoma
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Our Expert

Dr. Janice Huntingford
Janice Huntingford, DVM, has been in veterinary practice for over 30 years and has founded two veterinary clinics since receiving her Doctor of Veterinary Medicine at the Ontario Veterinary College, University of Guelph. She has studied extensively in both conventional and holistic modalities. Ask Dr. Jan

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