A Unique and Rare Presentation of Adult Congenital Heart Disease: Common Atrium Associated with Coronary Aneurysms and Fistula

Figure 2

Cardiac computed tomography angiography images. (a) Absence of the atrial septum (arrow). (b) Absence of interatrial septum showing free mixing of blood and contrast present in the atrium. (c) Common atrium with normal pulmonary connections, dilated pulmonary artery, and ectatic/aneurysmal left anterior descending artery. (d) Identifying fistula between the coronary artery and the coronary vein.

(a) CCTA: absence of atrial septum (arrow); CA = common atrium

(b) CCTA: absence of IAS, free mixing of blood and contrast present in the right atrium; CA = common atrium; LV = left ventricle; RV = right ventricle; MV = mitral valve; TV = tricuspid valve

(c) CCTA: common atrium with normal pulmonary connections, dilated pulmonary artery, and ectatic/aneurysmal LAD; AO = aortic orifice; PA = pulmonary artery; LAD = left anterior descending; RUPV = right upper pulmonary vein; RLPV = right lower pulmonary vein; LLPV = left lower pulmonary vein

(d) CCTA: identifying fistula between the coronary artery (LAD) and the coronary vein; LV = left ventricle; AV = arteriovenous; LAD = left anterior descending