整形外科と災害外科
Online ISSN : 1349-4333
Print ISSN : 0037-1033
ISSN-L : 0037-1033
移動性を有する馬尾神経鞘腫の1例
米井 徹新宮 彦助木村 功那須 吉郎塩谷 彰秀村田 雅明
著者情報
キーワード: 馬尾, 神経鞘, 移動性
ジャーナル フリー

1998 年 47 巻 3 号 p. 951-953

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A patient with mobile neurioma of the cauda equina is described in this report.
This 31-year-old man was hospitalized because of low back and gluteal pain. Neurological examination failed to reveal any abnormalities. MRI scan after injection of Gd-DTPA showed an area of high signal intensity at the L2 level. Myelogram demonstrated an almost complete block with characteristics of a well circumscribed intradural extramedullary tumor. It also showed that the level of the tumor varied between L2 and L4 according to the patient's position.
After induction of anesthesia and placing the patient in the prone position, myelography was repeated. This was useful for identifying the tumor location. A recapping laminoplasty of L2 was performed, the dura a was opened, and the tumor was exposed. The tumor was mobile but originated from a single elongated nerve of the cauda equina. Pathological examination revealed neurinoma.

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