[A case of accessory nerve neurinoma presenting an intracisternal tumor].
A case of neurinoma from the spinal accessory nerve which is located in the cisterna magna is reported. A 54-year-old woman was admitted to the institute in 1990 with complaints of headache, nausea and ataxic gait for several months. Plain CT showed dilation of the lateral ventricles and a mass of lower density in the cisterna magna. The capsule and septa of the mass were enhanced with contrast medium. MRI showed the mass was low intense on T1-weighted images and high intense on T2-weighted images. Gadolinium visualized the mass multicystic. V-P shunt was performed before tumor resection. Through suboccipital craniectomy and C1 laminectomy the tumor was removed. The tumor had a long neck attached to the right spinal accessory nerve and extended to the cisterna magna.
Soo
S J
SJ
Department of Neurosurgery, Kagawa Medical School.
Irie
K
K
Fujiwara
T
T
Kuyama
H
H
Nagao
S
S
D000055:Accessory Nerve; D002946:Cisterna Magna; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000175:diagnosis; D009442:Neurilemmoma / Q000175:diagnosis* / Q000601:surgery