Melanoma: The most dangerous form of skin cancer, a malignancy of the melanocyte, the cell that produces pigment in the skin.
Statistically, the probability of having a prostate cancer present with a PSA of between 4 and 10 is around 22 per cent. Once the PSA level rises above 10, the probability goes up to the order of 64 per cent.
Regular Prostate Exams Urged for Those Over 40. With prostate cancer the most frequently diagnosed cancer in the United States, the American Cancer Society now recommends prostate exam for men starting at age 40, rather than at age 50. Last year, the ACS estimated that 244,000 men would be diagnosed with the disease and 40,000 would die, one death every 14 minutes. The key to successful treatment and continued health and vitality is an early detection. Specifically, the American Cancer Society advises digital prostate exam for men as of the age 40. For men age 50 and over, it recommends the prostate specific antigen blood test. In the case of African American males, among whom the incidence of prostate cancer is twice that of Caucasian men, PSA's are advised as of age 40.