This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroradiology, Subject name: Radiology
Boomerang ventricle is a feature of? 
Select and explain. 
A. Lissencephaly, B. Schizencephaly, C. Holoprosencephaly, D. Huntingtons Chorea
C: Holoprosencephaly
Answer: C: Holoprosencephaly 
Explanation: *Pancake Brain and boomerang/horse shoe ventricle is presence of a single large ventricle in Prosencephalon feature of Alobar Holoprosencephaly Can be seen associated with Patau syndrome/Trisomy 13.