Abstract
We performed a nationwide survey concerning the annual incidence of malignant skin tumors in 1987-2001 in Japan, an epidemiological survey about basal cell carcinoma, squamous cell carcinoma, malignant melanoma, actinic keratosis, and the like, and assessed the prognosis of these diseases. According to the nationwide survey, the number of patients with malignant skin tumors increased clearly, and the relative incidence was basal cell carcinoma > squamous cell carcinoma > malignant melanoma. The results of the epidemiological survey and prognosis assessment were evaluated in detail for malignant melanoma, and the cumulative survival rate was calculated by year, sex, disease type, clinical stage, and the like. [Skin Cancer (Japan) 2007; 22: 209-216]
