<prompt> Persistent Primary Hyperplastic Vitreous PHPV is associated with:Patau syndromeEdward syndromeTrisomy 14Downs syndrome  <response>: Though Persistent Primary Hyperplastic Vitreous PHPV is found to be associated with many chromosomal abnormalities, the most common trisomy associated with it is Trisomy 13 Patau Syndrome. Trisomy 18, 21 are also in rare occasions associated with PHPV. Ref: Pediatric Ophthalmology and Strabismus, By Kenneth Weston Wright, Page 1055 Springer, 2003; Paediatric Opthalmology by Pamella Gallin 2000, Page 85; Rudolph Paediatrics 21st Edition, Page 2390 