Figure 2

CMR end-diastolic images demonstrating diverse patterns of LVH in HCM. (A) involving ventricular septum (VS), but sparing the LV free wall (FW); (B) hypertrophy of the basal anterior free wall and a portion of the contiguous anterior septum, representing the most common area of LV wall thickening in HCM; (C) massive hypertrophy (wall thickness, 33 mm) limited to basal posterior ventricular septum (asterisk); (D) focal area sharply confined to basal anterior septum (arrows); (E) localized to LV apex (asterisks); (F) segmental LV hypertrophy of the basal anterior septum and anterolateral wall (asterisks), separated by regions of normal LV thickness (arrows). Adapted with permission, from Maron MS et al.[29] FW = free wall; LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle; VS = ventricular septum.