Techniques of cutaneous examination for the detection of skin cancer

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Abstract
Skin cancers are the most common cancers in humans. The American Cancer Society estimates that in the United States more than 700,000 new skin cancers are diagnosed annually. Although the majority of nonmelanoma skin cancers occur on visibly exposed anatomic areas, most malignant melanomas occur on body sites obscured by clothing. The high mortality associated with advanced melanomas emphasizes the importance of performing regular total cutaneous examinations in all patients to detect early, easily curable lesions. A number of techniques aid in these examinations: (1) physical and psychologic preparation of the patient; (2) appropriate lighting and a suitable examination table; (3) when indicated, use of Wood's light, dermoscopy, and photography. In addition, any suspicious lesion should be biopsied promptly either in parte or in toto. Lastly, the patient should be educated about the signs and symptoms of skin cancer, the role of sunlight in causing skin cancer, and the need for sun avoidance and/or protection. By heightening public awareness of the high incidence of cancers of the skin and by emphasizing the need for routine examination of the entire cutaneous surface, most cutaneous malignancies can be diagnosed early when they can be cured by simple surgical procedures.

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