title: Cervical butterfly-block vertebra. A case report.
abstract: A new type of block vertebral malformation is described. A 42-year-old woman presented after an akinetic seizure. Routine cervical spine films, obtained because of a recent history of abnormal head posture, disclosed a vertebral anomaly. Computed tomography and conventional polytomography revealed that the lesion was composed of a butterfly vertebra as the upper portion of a pair of nonsegmented vertebrae. Vertebral fusion and segmentation anomalies are reviewed and compared with the specific features of this case.
authors.affiliation: Department of Neurosurgery, University of South Alabama, Mobile.
authors.forename: M
authors.initials: M
authors.lastname: Schlitt
authors.forename: P J
authors.initials: PJ
authors.lastname: Dempsey
authors.forename: R K
authors.initials: RK
authors.lastname: Robinson
mesh_terms: D000328:Adult; D002574:Cervical Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007714:Klippel-Feil Syndrome / Q000000981:diagnostic imaging; D014056:Tomography, X-Ray; D014057:Tomography, X-Ray Computed