Figure 1 . Coronary CT angiography findings: C) Ectasia of the LMCA (4.7 mm, Z 10.9) and A) Proximal segment of the LAD (3.9 mm, Z 10.2), where it forms a fistula that crosses the IV septum and the RV free wall B) Proximal normal-sized RCA. D)4 chamber view showing the coronary fistula drainage into the basal third RV free wall, a discernible opacification difference between the right cavities is also appreciated.