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Sensory ataxia with cranial nerve palsies
  1. Alexander Grundmann1,
  2. David Ledingham1,
  3. Marc Hardwick2,
  4. James Miller1
  1. 1Directorate of Neurosciences, Royal Victoria Infirmary, Newcastle upon Tyne, UK
  2. 2Wessex Neurological Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
  1. Correspondence to Dr Alexander Grundmann, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK; alexander.grundmann{at}nhs.net

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Case presentation

A previously independent 64-year-old man presented to his local hospital with new-onset diplopia and dysarthria while watching television. Over the following days, he developed painless perioral and upper limb sensory disturbance, gait unsteadiness and limb ataxia, most pronounced in the upper limbs. He was initially admitted and treated for a cerebrovascular event, followed by a period of failed rehabilitation. At 6-week review, his symptoms had worsened, and he required the assistance of two people to walk short distances. He was then transferred to a regional neurology unit. It was uncertain whether his symptoms had stabilised or progressed over the preceding fortnight. He had no other neurological symptoms, normal bladder and bowel function, and no history of preceding illness. Table 1 provides the background history.

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Table 1

Patient’s clinical and social background

Examination

Assessment of eye movements identified a complex ophthalmoplegia, with complete failure of right eye abduction. Upgaze was bilaterally limited to 45° and adduction was partially restricted. There was no nystagmus. He described perioral numbness and was unaware of food boluses within his mouth, though objective testing was normal. Tongue movements were slowed but symmetrical. There was no fasciculation and his swallow appeared normal. His speech was dysarthric but intelligible and had a subtle nasal character. There were no other cranial nerve signs. Neck flexion and extension were normal.

Tone was normal in all four limbs. His strength was symmetrically reduced in the upper limbs with the Medical Research Council (MRC) grade 4 proximally and 4− in the small finger muscles. Lower limb strength was MRC grade 4+ at hip flexion and 5 in all other muscle groups. He could not stand due to unsteadiness and had pronounced ataxia in all limbs. There was profound loss of proprioception to the shoulders in his arms with pseudoathetosis, with no corresponding lower limb involvement. Vibration …

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Footnotes

  • Contributors AG and MH wrote the manuscript. AG collected the clinical information and added to the literature review. DL performed a literature review and wrote early drafts. JM provided oversight and approved the final version of the manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed by Hugh Willison, Glasgow, UK.

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