[Prevalence of HPV-induced lesions in the anal canal among women with cervical intraepithelial neoplasia 2 and 3: cross-sectional study].

Purpose: To determine the prevalence of HPV-induced lesions in the anal canal of women with cervical intraepithelial neoplasia (CIN) grade 2/3.

Methods: A cross-sectional study was carried out from December 2008 to June 2009, in Pernambuco, northeastern Brazil. Only women with grade 2/3 CIN were included, and those who could not undergo anoscopy during their first visit were excluded.