Precordial murmur originating from pulmonary artero-venous malformation with and without pulmonary sequestration.

We report two cases of young patients in whom a continuous murmur was the only abnormal physical finding. The diagnosis was artero-venous malformation (AVM) in the context of pulmonary sequestration in the first patient and AVM alone in the second. The aim is to stress the perennial role of physical examination, the role of Doppler echocardiography and the importance of a multidisciplinary approach in the study of a pathological process involving the pulmonary vascular system.