Massive Aortic Root Dilatation on Echocardiogram (PLAX) in Marfan's Disease Can’t remember size this was many years ago, but you can get a sense from the side measurement scale it’s massive. Young man with marfan’s. No dissection. Dr. Ana Victoria Soto-Quintela @SotoHeartMD #Aortic #Root #Dilatation #Echocardiogram #aorta #clinical #pocus #Marfans #cardiology #plax