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J Med Virol. 2011 Aug;83(8):1358-61. doi: 10.1002/jmv.22107. Epub 2011 May 26.

Human papillomavirus type distribution in vulval intraepithelial neoplasia determined using PapilloCheck DNA Microarray.

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School of Medicine, Cardiff University, Cardiff, UK.


Vulval intraepithelial neoplasia is a precursor of vulval carcinoma, and is frequently associated with human papillomavirus (HPV) infection. Estimates of HPV prevalence in vulval intraepithelial neoplasia vary widely in the UK. The objective of this study was to assess HPV infection in a sample of women with vulval intraepithelial neoplasia, confirmed histologically, and determine the proportion of disease associated with HPV types targeted by prophylactic HPV vaccines. HPV infection was assessed in biopsies from 59 patients using the Greiner Bio-One PapilloCheckĀ® DNA chip assay. Valid results were obtained for 54 cases. HPV infection was present in 43 of the 54 cases (79.6%: 95% CI 67.1-88.2%). The most common HPV types were HPV 16 (33/54: 61.1%), HPV 33 (8/54: 14.8%), HPV 6 (5/54: 9.3%), and HPV 42 (3/54: 5.6%). The mean age of HPV positive women was significantly less than the mean age of HPV negative women. This is the largest UK series of vulval intraepithelial neoplasia in which HPV type has been investigated, and 34/54 (63.0%, 95% CI: 49.6-78.6%) cases were associated with HPV 16/18, which are targeted by current prophylactic HPV vaccines.

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