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A 17-year-old male patient with NYHA class II and massive LVH. (A) Electrocardiogram with LVH; (B) Transthoracic echocardiogram parasternal short-axis view shows severe asymmetric septal hypertrophy involving the anterior septum (wall thickness of 65 mm) and posterior LV (wall thickness of 24 mm); (C) M-mode echocardiogram recording of anterior systolic movement (ASM) and mitral leaflet septal contact (arrows); (D) CMR demonstrating the massive LVH.
