This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
Persistent primary hyperplastic vitreous is associated with - 
Select and explain. 
A. Patau syndrome, B. Edward syndrome, C. Trisomy 14, D. Downs syndrome
A: Patau syndrome
Answer: A: Patau syndrome 
Explanation: Persistent hyperplastic primary vitreous (PHPV), also known as Persistent Fetal Vasculature (PFV), is a rare congenital developmental anomaly of the eye that results following failure of the embryological, primary vitreous and hyaloid vasculature to regress seen in Trisomy 13 -patau syndrome,Norrie disease,Walker-warburg syndrome.