title: Ectopic breast tissue presenting as an anal polyp.
authors: Department of Pathology, London Health Sciences Centre and the University of Western Ontario, London, ON, Canada.
authors: Nancy G
authors: NG
authors: Chan
authors: John L
authors: JL
authors: Penswick
authors: Eric
authors: E
authors: Labelle
authors: David K
authors: DK
authors: Driman
mesh_terms: D001004:Anus Diseases / Q000473:pathology* / Q000601:surgery; D001940:Breast; D002828:Choristoma / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged