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The hidden story of the fourth ventricular choroid plexus: the flower basket of an old anatomist…

The actual shape of the 4th ventricular choroid plexus and the relationships between its development and the normal vs abnormal development of the vermis is still to be defined. This editorial illustrates in detail what is thought to be the normal developmental process of the 4th ventricle, its choroid plexus, and the anterior and posterior membranous areas. Then, it addresses the findings that high-resolution ultrasound is able to demonstrate in the normal and abnormal development of the above mentioned anatomical structures. Finally, it focuses on the key role that the 4th ventricular choroid plexus seems to play in this development, as becoming evident in recent researches on the topic. This article is protected by copyright. All rights reserved.