Trigeminal neuropathy from perineural spread of an amyloidoma detected by blink reflex and thin-slice magnetic resonance imaging.
The purpose of this study was to describe a trigeminal neuropathy caused by the perineural spread of an amyloidoma. A 62-year-old woman had an amyloidoma of the Gasserian ganglion that was hypointense on T2-weighted images; the lesion was enhanced by gadolinium on thin-slice magnetic resonance imaging. There was no evidence of systemic amyloidosis or underlying inflammatory or neoplastic disorders. Her blink reflex and thin-slice magnetic resonance imaging demonstrated that the right trigeminal nerve was involved. A rare trigeminal neuropathy resulted from the perineural spread of a primary amyloidoma that was difficult to detect by conventional magnetic resonance imaging.
Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.
Yuu
Y
Yamazaki
Kazuhide
K
Ochi
Yuki
Y
Nakata
Eisuke
E
Dohi
Kuniki
K
Eguchi
Satoshi
S
Yamaguchi
Toshinori
T
Matsushige
Takeshi
T
Ueda
Vishwa J
VJ
Amatya
Yukio
Y
Takeshima
Takeshi
T
Nakamura
Toshiho
T
Ohtsuki
Tatsuo
T
Kohriyama
Masayasu
M
Matsumoto
D000686:Amyloidosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D001706:Biopsy; D001767:Blinking / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008467:Meckel Diverticulum / Q000175:diagnosis / Q000473:pathology; D008875:Middle Aged; D011859:Radiography; D012668:Trigeminal Ganglion / Q000473:pathology*; D020433:Trigeminal Nerve Diseases / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology*