Penning L
Radiol Clin (Basel). 1976;45(6):425-34.
CSF ex vacuo is a proposed designation for abnormal collections of CSF replacing brain tissue which is absent or has disappeared as a result of maldevelopment, injury, infection, vascular disturbances, brain atrophy, etc. In the literature, designations such as arachnoidal, leptomeningeal and porencepalic cyst, and hydrocephalus ex vacuo, are commonly used. Even if the neuroradiological findings in CSF ex vacuo are impressive, its clinical significance may be nil or minor. However, CSF ex vacuo may develop expansive tendencies, the cause of which is not yet fully understood. On the basis of schemiatic drawings of the neuroradiological findings of eight cases of CSF ex vacuo the variations in aetiology, localization, diagnostic detectability, clinical significance and surgical implications are briefly discussed.
脑脊液代偿性囊肿是指脑脊液异常聚集替代因发育异常、损伤、感染、血管病变、脑萎缩等导致缺失或消失的脑组织。在文献中，常使用诸如蛛网膜囊肿、软脑膜囊肿、脑穿通畸形囊肿以及脑积水代偿性囊肿等名称。即使脑脊液代偿性囊肿的神经放射学表现明显，但其临床意义可能微不足道或影响较小。然而，脑脊液代偿性囊肿可能会出现扩张趋势，其原因尚未完全明确。基于8例脑脊液代偿性囊肿神经放射学表现的示意图，简要讨论了病因、定位、诊断可及性、临床意义及手术影响的差异。
