J Neurol Neurosurg Psychiatry doi:10.1136/jnnp-2013-305024
  • Neurological picture

Trigeminal neuralgia after pontine infarction affecting the ipsilateral trigeminal nerve

  1. Sungwook Yu
  1. Department of Neurology, Korea University College of Medicine, Seoul, Republic of Korea
  1. Correspondence to Dr Sungwook Yu, Department of Neurology, Korea University College of Medicine, #126-1, Anam-Dong 5-Ga, Seongbuk-Gu, Seoul 136-705, Republic of Korea; song4yu{at}
  • Received 24 January 2013
  • Revised 24 February 2013
  • Accepted 27 February 2013
  • Published Online First 26 March 2013

A 57-year-old man presented with numbness, paraesthesia and lancinating pain on the left side of the face, which had developed suddenly 10 days previously. He had hypertension and no history of headache. His facial pain was characterised by a brief electric shock-like pain, which was evoked by light stimuli, and also occurred spontaneously. A neurological examination showed a mild decrease in sensation on the left side of the face, mainly with V2 and V3 distribution, and on the left oral cavity, including the tongue and buccal mucosa. Other neurological examinations were normal, including the corneal reflex and the motor component of the trigeminal nerve.

MRI scan of the brain revealed the presence of a subacute ischaemic lesion in the left dorsolateral pons with the ipsilateral cisternal …

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