Brain and Nerve No to Shinkei Volume 45, Issue 6 (June 1993)

Cerebellopontine Angle Lipoma : Case Report Noritaka Aihara 1 , Hajime Nagai 1 , Ken Kamiya 1 , Takashi Matsumoto 1 , Nobuko Yamashita 1 1Department of Neurosurgery, Nagoya City University Medical School Keyword: lipoma , cerebellopontine angle , magnetic resonance image pp.559-562
Published Date 1993/6/1
  • Abstract
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Intracranial lipomas are rare. Cerebellopontine angle lipomas are extremely rare. We report a case of right cerebellopontine angle lipoma. A 47-year-old woman has been suffering from right trigeminal neuralgia for about 1 year.Neurological examina-tion showed right 5th and 8th cranial nerve dysfunc-tion. MRI demonstrated the high intensity mass lesion at right cerebellopontine angle. The lesion was demonstrated as negative intensity in an opposed image by using Dixon's technique. CT showed the lesion as a very low density area (-104 Hounsfield units). Subtotal removal of the tumor was performed following right suboccipital craniectomy. Pathological diagnosis was lipoma.

We review the literature on this rare tumor and discuss the clinical symptoms, radiological findings and management.We suggest that the operation should be prudently performed for the case with only hearing disturbance because there is a high possibility that hearing disturbance will worsen.

Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.


Brain and Nerve 脳と神経
45巻6号 (1993年6月)
電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院