[Restrictive cardiomyopathy of the right ventricle: differential diagnosis. Series of three cases].

The cardiomyopathies are defined as a primary disease of the myocardium and occur in children as well as in adults. Restrictive cardiomyopathy is the least common type of cardiomyopathy and is characterized by the restriction of ventricular filling. This condition can affect one or both ventricles.