Macroscopic evaluation revealed the characteristic increase of heart size and thinning of the lateral-posterior basal wall, as well as a left apical aneurysm in all CCC hearts (Fig.
In this study we confirmed these findings as all CCC hearts present fibrotic thinning of the lateral-posterior basal wall and apex of left ventricle, with an aspect of healed ischemic lesion.
The leak preventive wall has a basal wall
portion and a planar elastic expansible/contractible portion connected to an upper end portion of the basal wall
portion and raised in the excretion portion and in the rear section, and wherein a distance from an upper end portion of the basal wall
portion to the leak preventive layer in the rear section is shorter than a comparable distance in the excretion portion.