Detection of anal dysplasia through anal pap testing in HIV infected individuals

Background: Anal cancer is infrequent in the general population; currently at the rate of approximately one per 100,000 (Chiao, et al.,2005). However, the incidence of anal cancer in HIV-infected men who have sex with men (MSM) has been increasing at rates of 60-160 per 100,000 (Salit, et al., 2010).
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