Isolated Noncompaction of the Ventricular Myocardium: Infrequent Because of Missed Diagnosis?

Isolated noncompaction of the ventricular myocardium is frequently mistaken for other cardiomyopathies. We report a case of a 49-year-old woman admitted to hospital for heart failure and initially given the diagnosis of apical hypertrophic cardiomyopathy. In this case, myocardial contrast echocardiography and magnetic resonance imaging played a pivotal role in establishing the diagnosis of isolated noncompaction of the ventricular myocardium.