Neoplasia is the second most common cause of mortality in HIV patients. The prevalence of anal cancer among men who have sex with men (MSM) has continued to increase since the introduction of antiretroviral therapy. We screened 94 HIV-infected MSM patients. We found high-grade squamous intraepithelial lesions (HSIL) in six of the patients. The calculated prevalence of HSIL was 6.4% (95% confidence interval: 2.9-13.2). The study and implementation of screening programs for high-risk groups is a priority.
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