PMID: 8970587Dec 1, 1996Paper

Dysplastic nevi and other risk markers for melanoma

Seminars in Oncology
J Seykora, D E Elder

Abstract

Risk markers for cancer are genetic or behavioral attributes that are statistically associated with increased incidence of cancer. Risk may be assessed either in case-control studies, or in cohort studies in which individuals with particular attributes are followed and cancer risk is determined by direct observation. Both of these methods have been used to determine the major risk markers for melanoma. The single most important risk marker is the presence on the skin of dysplastic nevi. Dysplastic nevi may be regarded as intermediate lesions of tumor progression, in that approximately 30% of melanomas arise in association with a precursor nevus, which is most commonly dysplastic. However, paradoxically, because they are vastly more numerous than melanoma, most dysplastic nevi are stable lesions that do not progress. Additional important melanoma risk factors include a family and/or personal history of melanoma. A third major category of risk markers includes indicators of acute and chronic exposure to the sun, including freckles, actinic skin damage, and a history of sunburn. Evaluation of these markers in oncological patients and their first-degree relatives can identify a population of individuals whose risk for melanoma rang...Continue Reading

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