Figure 3.

Intravascular ultrasound findings of Case 2. (A and B) Intravascular ultrasound revealed obscured three-layered structure and peri-arterial low-echoic area (white arrows) in left main trunk. (C) Peri-arterial low-echoic area (white arrows) was observed at the site of mild plaque in mid-left anterior descending artery segment. (D) On PET-CT, there was increased F-18 fluorodeoxyglucose uptake in left main trunk where abnormal IVUS findings were seen. CT, computed tomography; IVUS, intravascular ultrasound; LAD, left anterior descending artery; LCX, left circumflex coronary artery; LMT, left main trunk; PET, positron emission tomography.