Origins: Anomalous LCA origin arising from a large common trunk from the right coronary sinus. The common trunk is large.
RCA is dominant.
The anomalous LCA courses anterior the RVOT before coursing posteriorly to give off the LAD, diagonal, circumflex and obtuse marginal branches.
LMCA - Noncalcific eccentric plaques, 25-49% stenoses, in the anomalous segment just anterior to the RVOT and immediately distal to the LAD.
LAD - small, patent. Anomalous LCA segment giving off at least 2 small patent diagonal branches has partially calcific plaque with probable moderate stenosis. Small diagonal branches are patent.
LCx - continuation terminating as OM branch is patent.
RCA - Large, with scattered partially calcific plaque with no significant stenosis.
PDA, PLV - Large, normal