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- Received February 17, 2009
- Accepted March 12, 2009
- Published online August 24, 2010.
A 37-year-old gentleman presented with musculoskeletal chest pain. An electrocardiogram showed a left bundle branch block. Echocardiogram demonstrated hypertrophy and deep trabeculation of the ventricular septum (A, Online Video 1). Cardiac magnetic resonance imaging showed bands of myocardial tissue arising from the inferoseptal region, with thinning of the myocardium in the crypts (B, Online Video 2). Left ventricular noncompaction is a congenital cardiomyopathy characterized by deep ventricular trabeculations with communication to the ventricle. Commonly, the apical and midventicular segments of the lateral and inferior wall are involved. It is associated with ventricular dysfunction, malignant arrhythmias, and systemic embolization. Involvement of the septum and inferoseptal wall is rare (1), and such a clear band-like structure has not previously been described. Cardiac magnetic resonance and echocardiography are of diagnostic value (1). Its potential complications make imaging and familial screening important.
- Received February 17, 2009.
- Accepted March 12, 2009.
- American College of Cardiology Foundation