DURING the past decade vascular malformations of the superior mediastinum have been the object of intense clinical interest. However, the occurrence of anomalies of the pulmonary artery as a cause of tracheobronchial obstruction has gone almost unrecognized. We previously reported 3 cases in which significant respiratory obstruction was produced by a left pulmonary artery coursing anomalously a...

A histologic study was performed on 22 specimens of pulmonary atresia with ventricular septal defect to 1) ascertain the existence of the main pulmonary artery; 2) distinguish the ductus arteriosus from the systemic collateral arteries (SCA); 3) establish the nutritive or functional nature of collateral circulation; and 4) evaluate the morphology of the distal pulmonary bed. Three cases had abs...

one of the more infrequent congenital diseases with a wide spectrum of symptoms and more complications of the right side of pulmonary artery (63% according to ten harkel) is unilateral pulmonary artery agenesis (upaa). the clinical presentation is variable, and many patients can be asymptomatic for many years and even throughout their lives. although the disease more frequently appears in child...