findings included a pansystolic murmur and a low-pitched delayed diastolic murmur at the left sternal border with no pulmonary valve closure sound , an rsr ' pattern in v1 on the electrocardiogram , and a chest x-ray showing a large heart and gross dilatation of the main , left or right pulmonary arteries but normal or reduced vascularity of the peripheral lung fields .
C0034086
pulmonary valve
C0018787
heart