Visualization of Cholesterol Crystals Liberated From a Diseased Saphenous Vein Coronary Bypass Graft.

A 60-year-old man who had undergone coronary artery bypass graft surgery 16 years previously was transported to our hospital for unstable angina pectoris. Cardiac catheterization revealed that a saphenous vein graft (SVG) to the left anterior descending coronary artery was significantly stenosed ([