Coronary Artery Disease Reporting and Data System 4A in a 56-year-old woman who presented with chest pain on exertion and abnormal electrocardiogram results. Curved multiplanar reformatted computed tomography angiographic image shows a predominantly noncalcified plaque (white arrowhead) in the mid RCA causing severe luminal stenosis (70%–99%). No other significant coronary artery disease was detected. ICA was recommended. ICA results (not shown) showed severe stenosis in the RCA artery, which was treated with balloon angioplasty and stent placement.DIST: distal, ICA: invasive coronary angiography, PDA: posterior descending artery, RCA: right coronary artery.