Cat Giant Cell Tumors
Veterinarian Reviewed on April 2, 2014 by Dr. Janice Huntingford
Cat Giant Cell Tumors
Giant cell tumors or histiocytomas are accumulations of histiocytes. Histiocytes are WBCs that are in the connective tissues of the cat’s body. They play a vital role in the defense of the immune system responses. They will surround infectious materials and debris from the cells. A histiocytoma is a Cat Tumors that contains too many histiocytes.
A histiocytoma is usually a benign growth. There are documented incidences of malignant histiocytomas. These contain fibroblasts as well as histiocytes. Fibroblasts are found in the connective tissue of the cat’s body and are important in the healing of wounds.
Signs and Symptoms
Giant cell histiocytomas are primarily found in cats, but they can be found in dogs as well. Initially there may be a firm tumor in the fatty layer of the skin. If your cat shows a Cat Loss of Appetite followed by a rapid Cat Loss of Weight, you should bring it to the attention of your vet as soon as possible. Your cat will appear to be experiencing Cat Lethargy as well.
Diagnosis
Your veterinarian will start with ruling out other issues prior to establish a course of treatment. However, there are other conditions that can cause histiocytomas.
• Cat Fibrosarcoma is a tumor located in fibrous tissues. These are malignant.
• Cat Chondrosarcoma is a tumor that is found in cartilage
• Cat Liposarcoma is developed in the fatty cells
• Peripheral nerve sheath tumors
A biopsy of the mass will be done and a histiological exam will be performed. There will also be x-rays and after all testing is done, treatment will be planned for your cat
Treatment Options
If the tumor is large or has metastasized, Cat Cancer Chemotherapy can be used and is helpful at times. The greatest chance for successful removal is to remove the tumor surgically. In cases that involve joints and limbs, it may be necessary to amputate your cat’s limb. However it will depend on the effect that the tumor is having on your cat’s affected limb.
Chemotherapy will have an assortment of side effects that have to be dealt with at home.
Home Care
This is truly a case where comfort counts. You and your veterinarian need to communicate at length. You will need medication to counteract the side effects and help keep your cat comfortable. Side effects will vary depending on the chemotherapy agents used.
During a course of chemotherapy, your cat may have a poor appetite. It is important to maintain adequate nutrition. There are special commercially prepared diets that have the extra nutrients necessary to keep your cat healthy. You should provide your cat with adequate Cat Cancer Dietary Supplements.
If your cat has had surgery the operative area needs to be observed for swelling and infection. One thing that will help the area heal is keeping your cat as pain free as possible. This will help to prevent your cat from licking and/or scratching the area of surgery.
If you notice any changes in your cat’s operative area or your cat’s behavior, you should not delay in contacting your vet. You should not attempt to take matters into your own hands. Be sure that you administer any antibiotics that may have been ordered, exactly as they were prescribed. Lots of love and attention along with a healthy diet will help your cat to a full and speedy recovery, as well as following Cat Palliative Cancer Care guidelines.
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
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Our Expert

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