Abstract：
The prominent retrocerebellar cerebrospinal fluid (CSF) space can be frequently encountered on paediatric neuroimaging studies. In cases involving abnormal vermian development where imaging does not align with the established criteria of Dandy-Walker malformation (DWM), the term \"Dandy-Walker variant or continuum\" has been historically employed to describe the aberrant posterior fossa development. Instead, the emphasis is on a more elaborate description of the findings in the posterior fossa. Moreover, combining the findings in the supratentorial brain can occasionally predict certain neurogenetic disorders that mimic Dandy-Walker phenotype. The present review demonstrates and differentiates the imaging features of various entities that result in an enlarged retrocerebellar CSF space, such as inferior vermian hypoplasia (IVH) and several neurogenetic conditions.
摘要：
在儿科神经影像学研究中经常会遇到突出的小脑后脑脊液（CSF）空间。如果涉及异常的Vermian发育，其中成像与Dandy-Walker畸形（DWM）的既定标准不一致，术语“Dandy-Walker变体或连续体”历来用于描述异常的后颅窝发育。相反，重点是对后颅窝的发现进行更详细的描述。此外，结合幕上大脑的发现,偶尔可以预测某些模拟Dandy-Walker表型的神经遗传疾病.本综述展示并区分了导致小脑后CSF空间扩大的各种实体的成像特征，如下疣发育不全（IVH）和几种神经遗传学疾病。
