Fig. 1

A Cardiac CT 3D volume rendering image demonstrates the high take-off LMCA(blue arrow) and multiple crypts in the interventricular septum(yellow arrows). B Cardiac CT demonstrates high take-off LMCA(blue arrow). C Cardiac CT 3D volume rendering image demonstrates the high take-off LMCA from another view. D Cardiac CT 2 chamber view demonstrates the multiple crypts in the inferior wall of the left ventricle(yellow arrows). E Cardiac CT short axis view shows the deep crypt in the anterior left–right ventricle insertion point(red arrow). F Cardiac CT short axis view shows the deep crypt in the inferior left–right ventricle insertion point(red arrow)