Left Ventricular False Tendons: Unseen or Overlooked?

Left ventricular false tendons are cord like fibromuscular bands seen commonly in the left ventricle and attach septum to free wall. Described as early as in late 1800s, their functional significance is still not well established. We present the imaging findings in a 13-year-old boy who presented with failure to thrive. Echocardiography and cardiac CT showed the presence of aortic valve thickening, sub-aortic membrane, and patent ductus arteriosus with the left ventricular false tendon.