起源于齿状韧带的枕骨大孔脑膜瘤。
Foramen magnum meningioma originating from the dentate ligament.
作者信息
Jung Tae-Young, Jung Shin, Kim In-Young, Kang Sam-Suk
机构信息
Department of Neurosurgery, Chonnam National University Hwasun Hospital & Medical School, Gwangju, Republic of Korea.
出版信息
Acta Neurochir (Wien). 2009 Apr;151(4):385-8; discussion 388. doi: 10.1007/s00701-009-0240-6. Epub 2009 Mar 7.
OBJECTIVE
The authors report a woman with a foramen magnum meningioma originating from the dentate ligament.
CLINICAL DESCRIPTION
A 72 year-old woman developed posterior neck pain and a tingling sensation in the left arm. Magnetic resonance imaging showed a well defined and homogenously enhancing mass at the foramen magnum with no dural attachment. Angiography did not demonstrate a blood supply to the tumour via the posterior meningeal branches of the vertebral artery. The mass was totally removed via a midline suboccipital approach. Intraoperatively, the mass was found to adhere to the dentate ligament without a dural attachment. Histopathology findings were consistent with the diagnosis of meningioma.
CONCLUSION
This case is the first report of a meningioma originating from the dentate ligament and the tumour may have originated from the pia-arachnoidal extension of the spinal cord to the dura.
目的
作者报告一例起源于齿状韧带的枕骨大孔脑膜瘤女性患者。
临床描述
一名72岁女性出现后颈部疼痛及左臂刺痛感。磁共振成像显示枕骨大孔处有一个边界清晰、均匀强化的肿块，无硬膜附着。血管造影未显示肿瘤通过椎动脉后脑膜支供血。通过枕下中线入路将肿块完全切除。术中发现肿块附着于齿状韧带，无硬膜附着。组织病理学检查结果与脑膜瘤诊断相符。
结论
该病例是起源于齿状韧带的脑膜瘤的首例报告，肿瘤可能起源于脊髓至硬膜的软膜-蛛网膜延伸部位。
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