Anomalous arterial supply of the right lower lobe from the abdominal aorta.Hypoplasia of the right pulmonary artery, and.Hypoplasia of the right lung with dextroposition of the heart,.Part of Scimitar syndrome when associated with:.Flow through the scimitar vein produces a left-to-right shunt that is usually hemodynamically insignificant.Characteristic appearance of the vein has led to its comparison to a scimitar.Size of the vein generally increases as it descends.Vein curves outward along the right cardiac border, usually from the middle of the lung to the cardiophrenic angle, and usually empties into the inferior vena cava but also may drain into the portal vein, hepatic vein, or right atrium.Anomalous pulmonary vein drains any or all of the lobes of the right lung.Partial Anomalous Pulmonary Venous Return.Generally associated with other major cardiac lesions.In the most common pattern, the vertical vein drains into the left innominate vein, and the anomalous vein or veins from the right lung drain into either the right atrium or the coronary sinus.Involves anomalous venous connections at two or more levels.Vertical vein usually joins the portal venous system but occasionally connects directly to the ductusvenosus, the hepatic veins, or the inferior vena cava.Pulmonary veins join behind the left atrium to form a common vertical descending vein, which courses anterior to the esophagus and passes through the diaphragm at the esophageal hiatus.Involves a connection at the infracardiac or infradiaphragmatic level.Pulmonary veins join either the coronary sinus or the right atrium.Involves a pulmonary venous connection at the cardiac level.Less commonly, drainage to the left brachiocephalic vein, right superior vena cava, or azygos v.Typically, four anomalous pulmonary veins converge behind the left atrium and form a common vein, known as the vertical vein, this passes anterior to the left pulmonary artery and the left main bronchus to join the innominate vein.The anomalous pulmonary veins terminate at the supracardiac level.Occurs when the pulmonary veins fail to drain into the left atrium and instead form an aberrant connection with some other cardiovascular structure.Total Anomalous Pulmonary Venous Return.Atrial border is abnormally convex, and the left atrium commonly is enlarged because of increased pulmonary blood flow.Patent ASD, VSD, Foramen ovale, systemic collaterals to sustain life.
Results in the apparent narrowing of the superior mediastinum on radiographs.Pulmonary artery is situated to the right of its normal location.Transposition of the great arteries is produced by a ventriculoarterial discordance in which the aorta arises from the morphologic right ventricle and the pulmonary artery arises from the morphologic left ventricle.5%–7% of congenital cardiac malformations.Most common cyanotic congenital heart lesion.It is important that Radiologists must be able to recognize these signs and must understand their causes in order to provide accurate diagnoses of abnormalities affecting the heart and vessels of the thorax. Swartbooi Diagnostic Radiology, UFS 2 March 2012Ĭongenital Heart Disease Numerous clinically important imaging signs in congenital cardiovascular disease.
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