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Meningioma Arising From the Trigeminal
Nerve: A Case Report and Literature Review
Yasunori Fujimoto, Amami Kato, Masaaki Taniguchi,
Motohiko Maruno, Toshiki Yoshimine
Department of Neurosurgery, Osaka
University Medical School, Osaka, Japan
We report a 69-year-old woman with a meningioma who presented with a
9-month history of progressive facial numbness in the distribution of the left
mandibular nerve and left facial palsy.
Magnetic resonance imaging revealed a mass in and around the left Meckel's cave
(MC).
The tumor was totally resected through a lateral suboccipital and subtemporal
combined approach.
It appeared to be a schwannoma, because it adhered firmly to the cisternal
portion of the trigeminal nerve without dural attachment.
Histopathological examination revealed that it was a meningothelial
meningioma.
We concluded that the tumor originated from the arachnoid cap cells within the
trigeminal nerve sheath, not from the dura mater in the MC.
Keywords: arachnoid cap cell, meningioma, Meckel's cave, schwannoma, trigeminal
nerve
Copyright
©
2004 Kluwer Academic Publishers.
All rights reserved
Source: http://journals.kluweronline.com/article.asp?PIPS=5272118
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