title: Not the typical Tornwaldt's cyst this time? A nasopharyngeal cyst associated with canalis basilaris medianus.
abstract: We report a patient with a cystic structure in the nasopharynx mimicking a Tornwaldt's cyst, which was felt to represent a different entity owing to the lack of the distinct features of a typical Tornwaldt's cyst. It was associated with a bony cleft in the basiocciput that was considered to be a canalis basilaris medianus (CBM), thought to represent an embryological vestige of the cephalic end of the notochord along its course within the basiocciput.
authors.affiliation: Department of Radiology, University of Minnesota and Hennepin County Medical Centers, Minneapolis, MN 55455, USA.
authors.forename: B D
authors.initials: BD
authors.lastname: Lohman
authors.forename: B
authors.initials: B
authors.lastname: Sarikaya
authors.forename: A M
authors.initials: AM
authors.lastname: McKinney
authors.forename: M
authors.initials: M
authors.lastname: Hadi
mesh_terms: D003560:Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009302:Nasopharyngeal Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D009672:Notochord / Q000000981:diagnostic imaging* / Q000473:pathology; D009777:Occipital Bone / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods