title: Carcinoma arising in a tailgut cyst diagnosed on fine needle aspiration (FNA) cytology.
authors.affiliation: Department of Pathology, Queen Alexandra Hospital, Cosham, Portsmouth, UK.
authors.forename: T
authors.initials: T
authors.lastname: Umar
authors.forename: J J
authors.initials: JJ
authors.lastname: Mikel
authors.forename: D N
authors.initials: DN
authors.lastname: Poller
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D018307:Neoplasms, Squamous Cell / Q000175:diagnosis* / Q000473:pathology; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D012445:Sacrococcygeal Region