Amyloid cardiomyopathy is characterized by non-dilated thick-walled left ventricular, thickening of interventricular septum and right ventricular free wall, biatrial enlargement associated with granular 'sparkling' appearance of the myocardium. Typically, decreased left ventricular compliance results in abnormal diastolic functions but left ventricular systolic functions are preserved until lat...

•Cor triatriatum dexter results from persistence of the right valve sinus venosus.•A 3D evaluation can help differentiate CTD other congenital abnormalities.•Treatment options for include surgery, first line, or percutaneous resection. Cor (triatrial heart) is a rare abnormality in which either left atrium (cor sinister) (RA; cor [CTD]) divided into 2 separate chambers. The was described 1860s ...