Figure 1.
(a, b): Four-chamber (a) and three-chamber (b) bright blood cardiac magnetic resonance imaging at age 22 showing asymmetric septal hypertrophy. (c): Short-axis post-contrast imaging at age 22 showing diffuse sub-epicardial left ventricular free wall late gadolinium enhancement (green arrows) and multiple focal septal areas of mid-myocardial late gadolinium enhancement (red arrows). (d): Short-axis post-contrast imaging at age 27 showing progression of sub-epicardial left ventricular free wall enhancement (green arrows) and progression in terms of both number and thickness of focal areas of mid-myocardial septal enhancement (red arrows).