
Figure 1
Cardiac computed tomography angiography 3-dimensional reconstruction showing absent right coronary artery (RCA) ostium and terminal segment of RCA.

Figure 2
Cardiac computed tomography angiography 3-dimensional reconstruction showing right coronary artery originating from the left circumflex artery. RCA: right coronary artery; LCx: left circumflex artery

Figure 3
Coronary computed tomography angiography-subtracted VRT reconstruction image shows origin of right coronary artery (RCA) from left circumflex artery with absence of RCA ostium. VRT: volume rendering technique; LCx: left circumflex artery; LAD: left anterior descending artery
Video 1
Cardiac computed tomography angiography 3-dimensional reconstruction shows the complete absence of right coronary artery (RCA) ostium and the course of RCA as it arises from the left circumflex artery (LCx) and terminates in the right coronary sulcus; see also at https://youtu.be/gfDtCQCge00.