Abnormal left ventricular trabeculations can be a cardiac manifestation of Becker’s muscular dystrophy.1 Abnormal left ventricular trabeculations in mitochondrial myopathy have not been reported before.

A 68 year old man with a history of chronic congestive heart failure and hypertension, had recurrent raised creatine kinase (CK) concentrations (up to 150 U/l; normal 70 U/l) with normal CKMB isoenzyme. Pulmonary rales were heard on clinical cardiological examination. ECG showed sinus rhythm, negative T waves, missing R progression, and signs of left ventricular hypertrophy. Echocardiography showed left ventricular dilatation with severely reduced left ventricular function and abnormal …