Human papillomaviruses comprise a large family of double stranded DNA viruses that are the etiologic agents of benign warts and anogenital cancers. At least 82 different human papillomavirus types have been identified and many remain yet uncharacterized. The development of new molecular techniques in recent years has led to an increased understanding of human papillomaviruses and their roles in carcinogenesis. Several clinicopathologic entities arising from human papillomavirus infection encountered by the dermatologist are the subject of the article. The epidemiology, molecular biology, clinical presentation, histologic findings, and treatment of each disorder, where applicable, is discussed.
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