Cervical butterfly-block vertebra a case report

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      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.


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        • Brown M.W.
        • Templeton A.W.
        • Hodges F.J.
        The incidence of acquired and congenital fusions in the cervical spine.
        AM J Roentgenol. 1964; 92: 1255-1259
        • Gray S.W.
        • Romaine C.B.
        • Skandalakis J.E.
        Congenital fusion of the cervical vertebrae.
        Surg Gynec Obstet. 1964; 118: 373-385
        • McElfresh E.
        • Winter R.
        Klippel-Feil syndrome.
        Minn Med. 1973; 56: 353-357
        • Dolan K.D.
        Developmental abnormalities of the cervical spine below the axis.
        Rad Clin North Am. 1977; 15: 167-175
        • Epstein B.S.
        The Spine, A Radiological Text and Atlas.
        in: Fourth edition. Lee & Febiger Publishers, Philadelphia1976: 175-182
        • Epstein B.S.
        The Spine, A Radiological Text and Atlas.
        in: Fourth edition. Lee & Febiger Publishers, Philadelphia1976: 188-190
        • Hensinger R.N.
        • Lang J.E.
        • MacEwen G.D.
        Klippel-Feil syndrome. A constellation of associated anomalies.
        J Bone Joint Surg. 1974; 56A: 1246-1253
        • Morrison S.G.
        • Perry L.W.
        • Scott L.P.
        Congenital brevicollis (Klippel-Feil syndrome) and cardiovascular abnormalities.
        Am J Dis Child. 1968; 115: 614-620
        • Pizzutillo P.D.
        Cervical Spine Research Society Klippel-Feil Syndrome, Congenital Malformations, The Cervical Spine. J.B. Lippincott Company, Philadelphia1973: 174-187
        • Lonstein J.E.
        Developmental abnormalities of spinal cord and vertebral column.
        in: Chou S.N. Seljeskog E.L. Spinal Deformities and Neurological Dysfunction. Raven Press, New York1978: 42-52
        • Schmorl G.
        • Junghanns H.
        Congenital anomalies of the spine.
        in: The Human Spine in Health and Disease. Grune & Stratton, New York1959: 24-59
        • Lemier R.J.
        • Loeser J.D.
        • Leech R.W.
        • Ellsworth C.A.
        Normal and Abnormal Development of the Human Nervous System.
        Harper & Row Publishers, Hagerstown, MD1975
        • McRae D.L.
        The significance of abnormalities of the cervical spine.
        Am J Roentgenol Rad Ther Nucl Med. 1960; 84: 3-25
        • Moore K.L.
        The Developing Human.
        in: Second edition. WB Saunders, Philadelphia1977: 45-80
        • Roaf R.
        Embryology, development and anatomy of the spine.
        in: Spinal Deformities. J.B. Lippincott Company, Philadelphia1977: 6-20
        • de Graaf R.J.
        • Matricall B.
        • Hamburger H.L.
        Butterfly vertebra.
        Clin Neurol Neurosurg. 1982; 84: 163-169
        • Muller F.
        • O'Rahilly R.
        • Benson D.R.
        The early origin of vertebral anomalies as illustrated by a butterfly vertebra.
        J Anat. 1986; 149: 157-169