May Be Caused by

Anomalous pulmonary artery arising from aorta

Aortic aneurysm

Aortic dissection

Aortic diverticulum

Aortic nipple

Aortopulmonary window

Atherosclerosis

Azygos continuation of inferior vena cava

Blalock-Taussig shunt

Cervical left aortic arch with right descending aorta

Circumflex left aortic arch with right descending aorta

Circumflex right aortic arch with left descending aorta

Coarctation of aorta

Coronary artery aneurysm

Coronary artery fistula

Corrected transposition of great vessels

Cystic medial necrosis of aorta

Double aortic arch

Drug abuse

High aortic arch

Idiopathic aortomegaly

Left aortic arch with aberrant right subclavian artery

Left superior vena cava

Marfan syndrome

Metamphetamine abuse

Necrotizing vasculitis

Patent ductus arteriosus

Polyarteritis nodosa

Potts procedure

Pseudocoarctation of aortic arch

Right anterior aortic arch with mirror-image branching

Right posterior aortic arch with aberrant left subclavian artery

Sinus of Valsalva aneurysm

Subvalvular left ventricular aneurysm

Superior vena cava dilatation

Superior vena cava syndrome

Syphilis

Systemic lupus erythematosus

Takayasu arteritis

Total anomalous pulmonary venous return

Transposition of great vessels

Truncus arteriosus

Waterston procedure

Wegener granulomatosis