Squamous cell skin cancer (sometimes referred to as a type of nonmelanoma skin cancer) may appear as nodules, or as red, scaly patches of skin. They often appear on sun-exposed parts of the body.
Squamous cell carcinoma is the second most common skin cancer found in whites, and is usually found on fair-skinned people. The risk factors for squamous cell carcinoma include the following:
Human papilloma virus (HPV) infection
History of skin cancer
Immunosuppression, such as in people who have had organ transplants
Treatment of psoriasis
Long-term skin inflammation or injury
Exposure to certain chemicals
Excessive exposure to UV radiation (sunlight or tanning beds)
Xeroderma pigmentosum (XP, a rare inherited condition)
Squamous cell carcinoma is typically found on areas often exposed to the sun, such as the rim of the ear, face, lips, and mouth; however, it can also develop on other parts of the body. Although generally more aggressive than basal cell carcinoma (in rare cases it may spread to other parts of the body), this cancer is highly treatable. In most cases, it is cured with minor surgery or other treatments.