Lateropulsion Due to a Lesion of the Dorsal Spinocerebellar Tract

  • MAEDA Kengo
    Division of Neurology, Department of Medicine, Shiga University of Medical Science
  • SAIKYO Michiko
    Division of Neurology, Department of Medicine, Shiga University of Medical Science
  • MUKOSE Atsushi
    Division of Neurology, Department of Medicine, Shiga University of Medical Science
  • TOMIMATSU Hirotaka
    Division of Neurology, Department of Medicine, Shiga University of Medical Science
  • YASUDA Hitoshi
    Division of Neurology, Department of Medicine, Shiga University of Medical Science

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Abstract

We report three cases showing body lateropulsion as the sole or predominant symptom of caudal lateral medullary infarction. All of them presented a small infarction on the lateral surface of the caudal medulla corresponding to the dorsal spinocerebellar tract (DSCT). Disturbed unconscious proprioception of the lower trunk and the lower limb conveyed by the DSCT might have been responsible for the isolated lateropulsion. Although lateropulsion itself improved within two weeks, one patient’s condition progressed to typical lateral medullary infarction. Lateropulsion caused by DSCT infarction could be a prodromal symptom of perfusion failure of a vertebral artery or the posterior inferior cerebellar artery.

Journal

  • Internal Medicine

    Internal Medicine 44 (12), 1295-1297, 2005

    The Japanese Society of Internal Medicine

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