View All Pages | steveram.info - Anal net
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ON THIS PAGE: You will find some basic information about this disease and the parts of the body it may affect. This is the first page of steveram.info's Guide to Anal. Anal cancer begins when healthy cells in or on the anus change and grow out of control, forming a mass called a tumor. Dysplasia in the anus is called anal intraepithelial neoplasia (AIN) or anal squamous intraepithelial lesions (SILs). Basal cell carcinoma is a type of skin cancer.