成熟性脊髓畸胎瘤导致的巨大硬膜内骨化：病例报告
Huge intradural ossification caused by a mature spinal teratoma: case report.
作者信息
Ijiri Kosei, Hida Kazutoshi, Yano Shunsuke, Iwasaki Yoshinobu
机构信息
Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
出版信息
Neurosurgery. 2009 Jun;64(6):E1200-1; discussion E1201. doi: 10.1227/01.NEU.0000345939.06275.9A.
OBJECTIVE
Huge intradural ossifications in the spine are quite rare. We report for the first time a patient with a huge intradural ossification caused by a mature teratoma at the conus medullaris.
CLINICAL PRESENTATION
A 68-year-old woman presented with low back pain and gait disturbance. Computed tomographic and magnetic resonance imaging revealed a huge ossification at the tip of the conus medullaris.
INTERVENTION
We performed L1 and L2 laminectomy and removed the mass completely. The pathological diagnosis was mature teratoma with remarkable ossification.
CONCLUSION
This unusual case of intradural ossification demonstrated regressive changes in a mature teratoma. Despite its tight adhesion to the conus medullaris and cauda equina, the ossified tumor was atraumatically removed with an ultrasonic aspirator.
目的
脊柱内巨大硬膜内骨化相当罕见。我们首次报告一例由圆锥马尾处成熟畸胎瘤引起的巨大硬膜内骨化患者。
临床表现
一名68岁女性因腰痛和步态障碍就诊。计算机断层扫描和磁共振成像显示圆锥马尾末端有巨大骨化。
干预措施
我们实施了L1和L2椎板切除术并完全切除了肿块。病理诊断为伴有显著骨化的成熟畸胎瘤。
结论
这例罕见的硬膜内骨化病例显示了成熟畸胎瘤的退行性变化。尽管骨化肿瘤与圆锥马尾和马尾神经紧密粘连，但使用超声吸引器无创伤地将其切除。
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