Video 5-5-1 (A-C): (A) Parasternal long-axis view in the patient described in the case vignette. Severe concentric left ventricular hypertrophy with preserved ejection fraction is demonstrated. A small pericardial effusion is also present. (B) Parasternal short-axis views in the patient described in the case vignette. Severe concentric left ventricular hypertrophy with preserved ejection fraction is demonstrated. A small pericardial effusion is also present. (C) Apical 4-chamber view in the patient described in the case vignette. Severe concentric left ventricular hypertrophy with preserved ejection fraction is demonstrated.