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  • Title: Second genital primary squamous neoplasms in vulvar carcinoma: viral and histopathologic correlates.
    Author: Mitchell MF, Prasad CJ, Silva EG, Rutledge FN, McArthur MC, Crum CP.
    Journal: Obstet Gynecol; 1993 Jan; 81(1):13-8. PubMed ID: 8380102.
    Abstract:
    OBJECTIVE: To determine whether vulvar squamous cell carcinomas associated with certain morphologic features and/or human papillomavirus (HPV) nucleic acids were more likely to be associated with other genital primary squamous neoplasms. METHODS: We surveyed 169 invasive squamous cell carcinomas of the vulva and correlated associated vulvar intraepithelial neoplasia (VIN), invasive growth patterns resembling VIN (intraepithelial-like or basaloid), and the presence of HPV nucleic acids by in situ hybridization with a history of a second primary squamous neoplasm of the genital tract. RESULTS: Twenty-two patients (13%) had a history of a second primary. An intraepithelial growth pattern or an associated VIN correlated significantly with HPV, at P = .0005 and P = .007, respectively, and with a second primary, at P = .077 and P = .009, respectively. When HPV-positive, the same histologic variables correlated with a second primary at P = .099 and P = .25, respectively. Compared with cases lacking both these histologic features and HPV, they correlated with multifocal disease at P = .01 and P = .003. CONCLUSIONS: The findings of HPV nucleic acids, tumor growth patterns, and associated VIN are interrelated and confer risk of other genital primary neoplasms in women with vulvar carcinoma. This supports the concept that subsets of vulvar carcinoma may be distinguished not only by morphology and HPV DNA, but also by a distinctly different risk of a second genital primary neoplasm.
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