<prompt> Left cardiac border bulge can be seen in all, exceptEnlarged azygous veinLeft appendicular overgrowthCoronary artery aneurysmPericardial defect  <response>: Left cardiac border is slightly concave. Bulging convexity of left heart border is produced by : 1 Left atrial appendage enlargement; 2 Left ventricular enlargement; 3 Right ventricular enlargement; 4 Left anterior descending coronary artery aneurysm; 5 Left sided pericardial defect. 