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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 …
Contributors JBK and SY are responsible for drafting and revising the manuscript; conception and design of the data; and analysis and interpretation of data; SY is responsible for acquisition of data and in study supervision.
Funding Supported by a grant from Korea University (K0714751).
Competing interests None.
Patient consent Obtained.
Ethics approval A single-case report was an exemption from formal ethics review in the Korea University Medical Center Institutional Review Board. Instead, we obtained a patient consent.
Provenance and peer review Not commissioned; externally peer reviewed.