病例报告：自动脑室造瘘术治疗梗阻性脑积水时的脑顶盖平坦化。
Case report: Flattening of the tectal plate in obstructive hydrocephalus with auto-ventriculostomy.
机构信息
Department of Neuroradiology, Paracelsus Medical University, Nuremberg South Hospital, Germany.
Department of Cardiology, Paracelsus Medical University, General Hospital Nuremberg, Germany.
出版信息
Neuroradiol J. 2022 Apr;35(2):255-259. doi: 10.1177/19714009211036686. Epub 2021 Aug 2.
BACKGROUND
Obstructive hydrocephalus in adulthood can be caused by stenosis in the aqueductal area. Chronic changes lead to a dilatation of the lateral ventricles and ballooning of infratentorial recesses. In rare cases a rupture of the floor of the third ventricle (so-called spontaneous ventriculostomy) has been described in the literature.Case presentation: We present two cases of chronic obstructive hydrocephalus due to aqueductal stenosis in adult patients. Magnetic resonance imaging included phase-contrast-imaging and revealed significant flow through the floor of the third ventricle in keeping with spontaneous ventriculostomy. In addition to other typical changes associated with chronic hydrocephalus, a distinct flattening of the tectal plate could be identified in one case.
CONCLUSION
We present two cases of spontaneous ventriculostomy in patients with chronic hydrocephalus. To our knowledge, flattening of the tectal plate has not yet been described in the literature and may be caused by continuous cerebrospinal fluid-pulsation.
背景
成人梗阻性脑积水可由导水管区域狭窄引起。慢性变化导致侧脑室扩张和颅后窝膨胀。在罕见的情况下，第三脑室底部破裂（所谓的自发性脑室造口术）已在文献中描述。
病例介绍
我们报告了两例成人因导水管狭窄导致的慢性梗阻性脑积水。磁共振成像包括相位对比成像，显示第三脑室底部有明显的血流，符合自发性脑室造口术。除了与慢性脑积水相关的其他典型变化外，一例患者还可以明显识别到脑顶盖的扁平。
结论
我们报告了两例慢性脑积水患者自发性脑室造口术的病例。据我们所知，脑顶盖的扁平在文献中尚未描述，可能是由于连续的脑脊液搏动引起的。
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