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KMID : 1189320130070040339
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Asian Spine Journal
2013 Volume.7 No. 4 p.339 ~ p.344
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Ventral Schwannoma of the Thoracolumbar Spine
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Yamahata Hitoshi
Yamaguchi Satoshi
Mori Masanao
Kubo Fumikatsu
Tokimura Hiroshi
Arita Kazunori
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Abstract
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We report two patients with ventral schwannoma in the thoracolumbar region manifesting as low back pain with or without paraparesis. In both patients magnetic resonance imaging (MRI) revealed a heterogeneously-enhanced intradural extramedullary mass in the thoracolumbar region. The tumors were successfully removed via the posterior approach. Their histology was consistent with schwannoma. Postoperative MRI showed no evidence of a tumor in either patient. Spinal schwannomas are common benign intradural extramedullary spinal neoplasms; most arise from the dorsal- and very few from the anterior roots. A literature review revealed that ventral schwannomas, including giant tumors as in the one from case 2 in our study, affect mainly the cervical region, and most are surgically addressed via the posterior approach. Careful handling of the spinal cord is mandatory for satisfactory surgical results.
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KEYWORD
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Spinal schwannoma, Intradural lesion, Ventral schwannoma, Giant
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