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Unusual presentation of more common disease/injury
CASE REPORT
Hypoglossal canal schwannoma causing isolated left 12th cranial nerve palsy
  1. Shruti Heda1,
  2. Davala Krishna Karthik2,
  3. Erigaisi Srinivas Rao3,
  4. Anirudda Deshpande4
  1. 1Department of Pathology, Max Care Hospital, Warangal, Telangana, India
  2. 2Department of Radiology, Surya Diagnostics, Warangal, Telangana, India
  3. 3Department of Neurosurgery, Srinivasa Pinnacle Hospital, Warangal, Telangana, India
  4. 4Department of Neurology, Vinayaka Neuro Multispeciality Clinic, Warangal, Telangana, India
  1. Correspondence to Dr Anirudda Deshpande, dr.anirudda.deshpande{at}gmail.com

Summary

A 40-year-old woman presented with insidious onset, gradually progressive dysarthria and inability to manoeuvre bolus of food in her mouth while eating. The duration of her symptoms was 3 months. On evaluation, the left half of her tongue was wasted. The tongue deviated to the left on protrusion. There were no clinical features suggestive of involvement of the ipsilateral 9th, 10th or 11th cranial nerves. MRI of the brain showed a large, fusiform lesion in the left hypoglossal canal, extending into the jugular canal. The lesion was surgically excised and found to be a schwannoma.

  • neurology
  • radiology

https://doi.org/10.1136/bcr-2018-225544

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    Footnotes

    • Contributors SH and DKK made substantial contributions to the conception and design of the work, acquisition, analysis and interpretation of the data. ESR and AD were involved in drafting the work and revising it critically for important intellectual content. AD and SH approved the final version to be published.

    • 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.

    • Patient consent Obtained.

    • Provenance and peer review Not commissioned; externally peer reviewed.