Pulmonary artery stenosis.

SINCE the description by Mbller' in 1953 of stenosis of peripheral pulmonary arteries, this congenital lesion has been recognized with increasing frequency. The lesion is of interest both from a clinical and physiologic standpoint. From the latter standpoint, there is sufficient documentation to warrant the inclusion of this congenital anomaly as one of the causes of right ventricular hypertension. From a clinical standpoint, pulmonary artery stenosis appears in some instances to be an additional cause of a continuous murmur heard over the thorax. We have recently seen 2 cases studied both by cardiac catheterization and by selective angiocardiography that are examples of stenosis of a peripheral pulmonary artery. The first case is of interest in that a continuous murmur had been heard over this patient's thorax for some years. The second case is an example of stenosis of a peripheral pulmonary artery demonstrated both by cardiac catheterization and angiocardiography.