Pulmonary hypertension and a continuous murmur due to multiple peripheral stenoses of the pulmonary arteries.

Pulmonary hypertension has been the subject of many recent studies. The varieties of pulmonary hypertension can be classified as passive, obstructive, hyperkinetic, and vasoconstrictive (Wood, 1956). In the obstructive group acute and chronic pulmonary thrombosis and embolism, chronic lung disease, collagen disease, and schistosomiasis are the usual causes. A patient is described in whom an obstructive form of pulmonary hypertension was due to multiple bilateral stenoses of the main branches of the right and left pulmonary arteries. These congenital anomalies also gave rise to a continuous ductus-like murmur. This syndrome was first described in Sweden (Arvidsson, Karnell, and Moller, 1955) and has not been reported in Britain.