Prominent Eustachian valve on Echocardiogram Prominent Eustachian valve can be confused with the right atrial mass, esp when there is a clinical presentation to support it. Prominent Chiari Network too Ivan Stankovic, MD, PhD @Ivan_Echocardio #Chiari #network #Eustachian #valve #a4c #Echocardiogram #clinical #cardiology #pocus