title: Anal canal tumors and their precursors.
authors.forename: C
authors.initials: C
authors.lastname: Fenger
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D001003:Anal Canal / Q000033:anatomy & histology / Q000473:pathology; D001005:Anus Neoplasms / Q000473:pathology*; D002276:Carcinoid Tumor / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D006801:Humans; D008545:Melanoma / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology*