Figure Legends
Fig. 1.
Electrocardiography shows ST-segment elevation in II, III, and aVF and a first-degree atrioventricular block.
Fig. 2.
Urgent catheter examination shows total occlusion in the right coronary artery (RCA) #3 and 90% stenosis in the left anterior descending (LAD) artery #7.
Fig. 3.
The distal occlusion in the RCA the fourth posterolateral branch artery (#4PL) and posterior descending artery (#4PD) was newly found after thrombectomy.
Intravascular ultrasound likely shows thick plaques [white arrows] and thin fibrous capsules on lipid pool plaques [red arrows].
Fig. 4.
The follow-up coronary angiography is normal, including RCA #4PD/PL findings.
Optical coherence tomography shows white thrombus [white arrow] and a large vasa vasorum in the plaque layer near the thrombus [red arrows].
Fig. 5.
The thrombus contains atheroma rich in cholesterin crystal [black arrow] and foam cells [white arrow].