Four-chamber cardiac magnetic resonance (CMR) showing massive septal hypertrophy in a patient with hypertrophic cardiomyopathy (HCM)

Four-chamber cardiac magnetic resonance (CMR) image showing massive septal hypertrophy in a patient with hypertrophic cardiomyopathy (HCM).

Courtesy of Martin Maron, M.D.

Graphic 87656 Version 2.0