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연수와 경수에 발생한 수내 신경초종 - 증 례 보 고 -
이종원,박승원,김영백,황성남,최덕영,Lee, Jong-Won,Park, Seung-Won,Kim, Young-Baeg,Hwang, Sung-Nam,Choi, Duck-Young 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.9
Spinal schwannomas are usually extramedullary intradural tumors and their intramedullary localizations are thought to be extremely rare. A 60-year-old woman complaining spastic quadriparesis, voiding difficulty and dyspnea was admitted. Her cervical MRI revealed an intramedullary mass in the cervicomedullary junction with multiple cyst which extended from lower cervical to C3 spinal cord. The mass showed a low signal on T1WI, high signal on T2WI with an wall enhancement. The patient underwent a suboccipital craniectomy and C1-2 laminectomy and the cystic tumor was totally removed through a midline myelotomy. The tumor was proved as an intramedullary schwannoma by pathologic examination. The Intramedullary presence of a tumor arising from the cells of the nerve sheath is unusual, because the central nervous system fibers do not contain the Schwann cell. There have been several hypotheses, but none has been accepted universally. This rare tumor is considered as a curable benign neoplasm, and an accurate intraoperative diagnosis and surgically total removal are essential.