Squamous Cell Carcinoma

Squamous cell carcinoma (SCC) is the second most common cancer of the skin. Squamous cell carcinoma is a tumor that arises in the outer layer of the skin (the epithelium). More than 250,000 new SCCs are diagnosed every year in the U.S. Middle-aged and elderly persons, especially those with fair complexions and frequent sun exposure, are most likely to be affected. If treated in a timely manner, it is uncommon for skin squamous cell carcinoma to spread to other areas of the body. Squamous cell carcinomas often arise from small sandpaper-like growths called solar or actinic keratoses.