Subclinical Human Papillomavirus Infection of the Male Lower Genital Tract: Colposcopy, Histology and DNA Analysis

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Abstract
In 25 partners of women with genital human papillomavirus (HPV) infection or cervical intraepithelial neoplasia, colposcopic examination revealed the existence of subclinical HPV infection of the male lower genital tract in 22 cases. It manifested either as short papillae tipped with acetowhite changes, or flat acetowhite lesions on the foreskin, glans, periurethral region, scrotum, perineum and/or perianal region. Multiple lesions involving several anogenital areas were common. Some of these abnormalities were small and inconspicuous. Of these 22 cases, 17 had histological evidence of HPV infection. Although Southern blot hybridization detected HPV DNA in only one case, polymerase chain reaction (PCR) analysis revealed HPV DNA in 20 cases There were 10 cases of HPV 16. Subclinical HPV disease is best identified by colposcopy and confirmed by PCR. In treating HPV disease, colposcopic recognition of subclinical HPV disease forms an essential part of the management plan.