The most common oral tumor seen in cats is squamous cell carcinoma; the second most common is fibrosarcoma. This handout discusses the clinical signs, diagnosis and treatment of oral tumors in cats.

Fibrosarcomas are the second most common oral tumor in cats and arise from the fibrous and connective tissues of the oral cavity. These tumors are very invasive locally and are often difficult to manage, Diagnosis is based on biopsy and treatment involves surgery and occasionally radiation or chemotherapy. Palliative care with pain relief and antibiotics are essential to improve quality of life.

There are many causes of oral swellings, including local trauma, infection, fluid accumulation and tumors. If you find an oral swelling in your cat’s mouth, book an appointment with your veterinarian as soon as possible. Your veterinarian will perform diagnostic tests such as intraoral X-rays, blood tests, and tissue sampling. Treatment and prognosis depend on the cause.

There are many reasons why your cat might need oral surgery, including dental disease and oral tumors. Your veterinarian may refer your cat to a board-certified dentist, surgeon, or oncologist. Prior to your cat’s surgery, blood tests will be performed to prepare an anesthetic protocol suitable for your cat. Most cats recover with minimal discomfort and will need to eat soft food until healing is complete.

Cats have four types of teeth: incisors, canines, premolars, and molars. Skeletal malocclusion results when an abnormal jaw length creates a malalignment of the teeth. Dental malocclusion occurs when the upper and lower jaw lengths are considered normal but one or more teeth are out of normal alignment. This article explains the common forms of skeletal and dental malocclusion seen in cats.