Urbach F
Temple University School of Medicine, Philadelphia, Pennsylvania.
Dermatol Clin. 1991 Oct;9(4):751-5.
Nonmelanoma skin cancers are the most common malignant neoplasms of fair-skinned people, in many sunny countries exceeding the total of all other neoplasms. The evidence that the primary causal agent is chronic repeated exposure to solar ultraviolet radiation is overwhelming. The incidence of basal cell carcinoma is always greater than that of squamous cell carcinoma, varying by latitude from 10:1 to 2.5:1. The incidence of nonmelanoma skin cancer has been increasing by 2% to 3% per year, at least in the United States. Most likely, this is caused by greater outdoor exposure for leisure and social reasons.
非黑色素瘤皮肤癌是白种人最常见的恶性肿瘤，在许多阳光充足的国家，其发病率超过了所有其他肿瘤的总和。主要致病因素是长期反复暴露于太阳紫外线辐射，这一证据确凿。基底细胞癌的发病率始终高于鳞状细胞癌，发病率随纬度变化，比例从10:1到2.5:1不等。至少在美国，非黑色素瘤皮肤癌的发病率每年以2%至3%的速度增长。很可能，这是由于休闲和社交等原因导致户外暴露增加所致。
