[Radiology of trigeminal neuralgia--with special reference to CT findings].
CT findings in ninety-nine patients with trigeminal neuralgia were reviewed. Brain tumors including three trigeminal neurinomas, three meningiomas, one epidermoid, one acoustic neurinoma, were found in eight cases as a cause of symptomatic trigeminal neuralgia. Among seventy-nine patients with idiopathic trigeminal neuralgia, four cases had vascular decompression surgery because of the tortuous, ectatic or anomalous vertebrobasilar artery. Among the other seventy-five non-surgical cases, seventeen cases showed the tortuous and/or ectatic vertebrobasilar artery on CT, and this group of patients showed slightly higher recurrence rate of trigeminal neuralgia after nerve block or medication compared with other non-surgical patients. CT is thought to be a useful screening imaging modality for evaluation of patients with trigeminal neuralgia, and angiography is required for precise evaluation of the compressing vessels when surgical treatment is contemplated.
Matsumoto
S
S
Department of Radiology, Saga Medical School.
Kishikawa
T
T
Kudo
S
S
Kaneko
K
K
Matsuo
Y
Y
Mizuguchi
M
M
Ro
T
T
Totoki
T
T
Harano
K
K
Tabuchi
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003390:Cranial Nerve Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D008579:Meningioma / Q000150:complications / Q000000981:diagnostic imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000150:complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014277:Trigeminal Neuralgia / Q000000981:diagnostic imaging* / Q000209:etiology