Basal cell and squamous cell skin cancers are the most common human cancers. They were estimated to have an incidence of more than one million cases in the United States in 2003. Although rarely metastatic, basal cell and squamous cell cancers can produce significant local destruction and disfigurement and may involve extensive areas of soft tissue, cartilage, and bone. The estimated annual cost of treating these two diseases in the United States exceeds $500 million.
For the most recent version of the guidelines, please visit NCCN.org