title: Trigeminal neuralgia caused by contralateral supratentorial meningioma.
abstract: Most trigeminal neuralgia is attributable to vascular compression of the root entry zone of the trigeminal nerve at the pons. Only about 5-10% of trigeminal neuralgia cases are caused by direct compression by ipsilateral cerebellopontine angle tumors. Trigeminal neuralgia caused by contralateral posterior fossa tumors are extremely rare. Cases in which neuralgia is caused by a contralateral supratentorial tumor have been seldom reported. This report describes a case of large meningioma in the left occipital region. The patient's right facial pain subsided gradually after tumor excision. This neuralgia is likely due to a displaced adjacent vessel that developed following brainstem distortion by the tumor.
authors.affiliation: Division of Neurosurgery, Department of Surgery, Tzu-Ai General Hospital, 321-90 Shin-fon Le, Shilo Town, Yun-Lin, Taiwan. wancheng@tagh.org
authors.forename: Wan-Chun
authors.initials: WC
authors.lastname: Cheng
authors.forename: Chen-Nen
authors.initials: CN
authors.lastname: Chang
mesh_terms: D005260:Female; D007839:Functional Laterality; D006801:Humans; D008579:Meningioma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000209:etiology* / Q000601:surgery; D015173:Supratentorial Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome; D014277:Trigeminal Neuralgia / Q000209:etiology* / Q000601:surgery