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Updated: Feb 3, 2026

A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
Hypoglossal canal schwannoma causing isolated left 12th cranial nerve palsy
Shruti Heda1, Davala Krishna Karthik2, Erigaisi Srinivas Rao3
1Department of Pathology, Max Care Hospital, Warangal, Telangana, India.
Abstract:
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.
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