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Treatment of Anal High-Grade Squamous Intraepithelial Lesions to Prevent Anal Cancer
Like cervical cancer, anal cancer is often caused by a human papillomavirus and has a premalignant stage called high-grade squamous intraepithelial lesion or anal intraepithelial neoplasia. A randomized trial showed that treating HSIL led to a 57% reduction in progression to anal cancer as compared with active surveillance