[Isolated sensory trigeminal neuropathy caused by a lateral pontine infarct]]

Lesion of cranial nerves due to vascular damage at pontine level generally associates affectation of near nerve tracts. Isolated fifth nerve palsy due to vascular pontine lesions has been scarcely reported. We present a hypertense 57 year old woman who suffered from sudden paresthesias and hypoesthesia on the three divisions of trigeminal nerve without motor involvement and with preservation of corneal and masseter reflexes. Cranial magnetic resonance showed small dorsolateral pontine infarct over the right fifth cranial nerve entry. Isolated sensitive trigeminal neuropathy is a rare debut form of pontine infarct.