title: A common tumor, an uncommon location.
authors.affiliation: Department of Surgery, Mid-Western Regional Hospital, Limerick, Ireland.
authors.forename: Faisal M
authors.initials: FM
authors.lastname: Shaikh
authors.forename: Vourneen C
authors.initials: VC
authors.lastname: Healy
authors.forename: Eamon G
authors.initials: EG
authors.lastname: Kavanagh
mesh_terms: D000368:Aged; D001003:Anal Canal; D001706:Biopsy; D002280:Basal Cell Carcinoma / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011351:Proctoscopy / Q000379:methods*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000601:surgery