PMC3915941_01
Chronic total occlusion of left anterior de scending artery
PWKI-9-20462-g001.jpg
PMC3915941_01_PWKI-9-20462-g001.jpg
F0001
Coronary angiography demonstrated chronic total occlusion of the LAD at its proximal segment and acute total occlusion of the RCA at the proximal segment after the conus branch (Figure 1).
Collateral circulation from the conus artery to the left anterior descending artery
PWKI-9-20462-g002.jpg
PMC3915941_01_PWKI-9-20462-g002.jpg
F0002
It coursed with the LAD at the medial segment (Figure 2).