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Ann Clin Neurophysiol > Volume 7(1); 2005 > Article
Ann Clin Neurophysiol. 2005; 7(1): 43-46.
Pontine Lesion Presenting as Trigeminal Sensory Neuropathy
Dong-Hoon Oh, Jae-Hyuk Heo, and Jung-Jun Sung
Copyright © 2005 The Korean Society of Clinical Neurophysiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Trigeminal sensory neuropathy is a clinical diagnosis in which the main feature is facial numbness limited to territory of one or more sensory branches of the trigeminal nerve. We describe a 46-year-old woman who presented with left facial numbness in the territories of maxillary nerve and mandibular nerve. MRI disclosed a lesion in left trigeminal nerve root entry zone. In Blink test stimulating infraorbital foramen, ipsilateral R1 was delayed compared with contralateral R1. Lesion in pons or medulla can present as trigeminal sensory neuropathy.
Key words: Trigeminal sensory neuropathy, Pontine, Blink reflex
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