1. There are two types of Cardiomegaly: Dilative - The heart can become enlarged due to dilation of the myocardium

2. Basically three different morphological types can be differentiated: Early after transplantation, diffuse intimal thickening or vasculitis predominate; late after transplantation, focal artheriosclerotic plaques are found; and in some patients a type of dilative angiopathy occurs.