NCIt synonyms : Intraepithelial Neoplasia of Anus; Intraepithelial Neoplasia of the Anus; AIN; Anal Dysplasia; Anal Canal and Perianal Squamous Intraepithelial Neoplasia; Anal Canal and Anal Margin Squamous Intraepithelial Neoplasia; Anal Squamous Dysplasia; Anal Squamous Intraepithelial Neoplasia;
CISMeF acronym : AIN;
NCIt definition : A precancerous neoplastic intraepithelial process involving either the squamous and
transitional zones of the anal canal or the perianal skin (anal margin).;