Basal-cell carcinoma
In the United States approximately 3 out of 10 caucasians develop a basal-cell carcinoma during their lifetime. This tumor accounts for approximately 70% of non-melanoma skin cancers. In 80 percent of all cases, basal-cell carcinoma affects the skin of head and neck. Furthermore, there appears to be an increase in the incidence of basal-cell cancer of the trunk in recent years.
Giant cell
This disease is mostly known to affect older individuals that are in their fifties and sixties. Women are three times more likely to develop the disease than men, and Caucasians are seven times more likely to develop the disease than Africans.