Squamous Cell Carcinoma in Cats

Squamous cell carcinoma is a malignant cancer that most often affects a cat's ears, nose or eyelids. It is caused by too much sun exposure, especially among white cats or those that have white points. In all cats, areas with sparse hair are vulnerable.

Lesions

Lesions from squamous cell carcinoma can be tiny at first. They may start out as just a red, flaky spot. If not treated, sores can grow to be quite ugly, large and painful. Hair loss in the affected areas is common.

Diagnosis

A biopsy is required for a definitive diagnosis of squamous cell carcinoma. Early detection and diagnosis dramatically improves the chances of survival.

Surgery

The veterinarian will usually perform surgery to remove the lesions. When the cancer is on the ear flaps, it is a simple matter of amputating them. Surgery on the nose or elsewhere is more complicated. Radiation or chemotherapy may also be indicated.

Prognosis

If the lesion is successfully removed, your cat may remain cancer-free. In advanced cases, the cancer is likely to spread to the lymph nodes or the lungs, where it resists treatment.

Prevention

Keep your white cat out of the sun altogether and limit other cats' exposure to the sun when it is strongest. Sunscreen rubbed on the ears and nose provides some protection, but one good grooming session can wash it all off.

References

• White cats and squamous cell carcinoma
• Squamous cell carcinoma in cats
• Squamous cell carcinoma information