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  • Title: In situ hybridization analysis of human papillomavirus DNA segregation patterns in lesions of the female genital tract.
    Author: Nuovo GJ, Friedman D, Richart RM.
    Journal: Gynecol Oncol; 1990 Feb; 36(2):256-62. PubMed ID: 2153624.
    Abstract:
    Various histologic features may be used to divide human papillomavirus (HPV)-related lesions of the genital tract into two groups: condylomata and "low-grade" or grade 1 cervical intraepithelial neoplasias (CIN 1) versus "high-grade" or grade 2 and 3 intraepithelial neoplasias. Using in situ hybridization analysis we correlated HPV DNA type with histologic features in 350 biopsies of lesions from the cervix, vulva, and perianal region. HPV DNA was most commonly found in vulvar and perianal condylomata (39/46, 85%), whereas the rate in CIN 1 lesions was 72% (86/120). The rates were 53% (40/76) and 57% (12/21) in CIN 2/3 and vulvar intraepithelial neoplasm (VIN) grades 2 and 3, respectively. The HPV type in all but 2 of the 39 perianal and vulvar condylomata which contained HPV was 6/11. Despite their similar histologic features, the HPV type in only 23 of 86 (27%) CIN 1 cases with detectable HPV was 6/11 compared to 31 of 86 (36%) which contained HPV 16-related DNA and 32 of 86 (37%) which contained HPV 31,-33, or -35-related DNA. The viral DNA in the majority of CIN 2/3 lesions and all of the VIN 2/3 lesions was HPV-16 related; no CIN 2/3 or VIN 2/3 lesion had HPV 6/11-related DNA. It is concluded that although cutaneous genital tract condylomata are highly associated with HPVs of low oncogenic potential (types 6 and 11), these HPV types are not as frequent as the oncogenic HPVs (16, 31, 33, and 35) in CIN 1 lesions. Further, HPV 6/11 appears to be very rarely associated with CIN 2/3 or VIN 2/3 lesions.
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