Fibrosarcoma in Cats and Dogs
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Last updated 4/10/13
Fibrosarcomas (also known as fibroblastic sarcomas) are malignant tumors derived from the fibrous connective tissue.
They are the most common type of soft-tissue sarcoma tumors in cats, and are also frequently observed in dogs. Most
fibrosarcomas form in the skin, subcutaneous tissue (the layer underneath the skin), or oral cavity (mouth). In cats, the
administration of vaccines (e.g. rabies and feline leukemia virus) is associated with an increased risk of fibrosarcoma at the
site of vaccination. For more information about symptoms, diagnosis and treatment options for each of these fibrosarcoma
subtypes, please click on the below links.