Familial Isolated Restrictive Cardiomyopathy, also known as familial or idiopathic restrictive cardiomyopathy, is related to myopathy, myofibrillar, 1 and cardiomyopathy, familial restrictive, 2. An important gene associated with Familial Isolated Restrictive Cardiomyopathy is FLNC (Filamin C), and among its related pathways/superpathways are Cardiac conduction and Cytoskeletal Signaling. Affiliated tissues include heart, and related phenotypes are abnormal left ventricular function and right atrial enlargement