Acardia (Twin Reversed Arterial Perfusion Sequence) is a rare and one of the most bizarre congenital malformations occurring in multiple pregnancies. It affects 1 in 35. 000 pregnancies. Usually one twin shows absence of heart and other is structurally normal. https://www.jmannino.com/mega-pick-Royal-Nomadic-5413-Rug-Ivory-Black-limited-super/