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Short report
Contralateral pharyngeal paralysis caused by medial medullary infarction
  1. M Nakajima1,
  2. M Inoue1,
  3. Y Sakai2
  1. 1Department of Neurology, Tokyo Rosai Occupational Diseases and Injuries Hospital, Tokyo, Japan
  2. 2Department of Otorhinolaryngology, Tokyo Rosai Occupational Diseases and Injuries Hospital
  1. Correspondence to:
 Dr M Nakajima
 Department of Neurology, Tokyo Rosai Occupational Diseases and Injuries Hospital, 4–13–21 Ohmori-minami, Ohta-ku, Tokyo, Japan 143–0013; masashitokyoh.rofuku.go.jp

Abstract

A patient with unilateral upper medial medullary infarction presented with contralateral paralysis of the pharyngeal constrictor muscle in association with lemniscal sensory loss, pyramidal insufficiency, and central facial palsy on the same side. Individual differences in supranuclear control of the pharyngeal muscles may explain this rare occurrence. The combination of these signs is described as a syndrome of upper medial medullary lesion.

  • LMI, lateral medullary infarction
  • MMI, medial medullary infarction
  • MRI, magnetic resonance imaging
  • TMS, transcranial magnetic stimulation
  • MEP, motor evoked potential
  • medial medullary infarction
  • pharyngeal muscle
  • nucleus ambiguous
  • corticobulbar tract

https://doi.org/10.1136/jnnp.2004.058586

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    Footnotes

    • Competing interests: none declared