Unilateral trigeminal mandibular motor neuropathy caused by tumor in the foramen ovale.
Pure trigeminal motor neuropathy is characterized by trigeminal motor weakness without signs of trigeminal sensory or other cranial nerve involvement. We describe a 63-year-old woman with progressive weakness and atrophy of the left masticatory muscles. She had no sensory disturbance. The diagnosis of pure trigeminal motor neuropathy was made on the basis of clinical and electrophysiologic studies. Magnetic resonance imaging of the brain revealed enhancement of the enlarged mandibular branch of the trigeminal nerve coursing through the left foramen ovale. Our observations suggest that pure trigeminal motor neuropathy can be induced by a tumor.
Park
Kyung Seok
KS
Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.
Chung
Jae-Myun
JM
Jeon
Beom S
BS
Park
Seong-Ho
SH
Lee
Kwang-Woo
KW
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