Fig. 2

Transthoracic echocardiogram. Four-chamber view in diastole of a normal right ventricle base (a) measuring 4 cm (should be less than 4.2 cm), dilated right ventricle (b) in pulmonary hypertension, restrictive cardiomyopathy (c) in an amyloid in patient with thickened septum (yellow arrow between RA and LA) and left ventricular cavity wall (yellow arrow next to LV), and diastolic heart failure (d) with enlarged left atrium and ventricle. Parasternal view with normal right and left ventricle (e) and dilated right ventricle (f) with D-shaped left ventricular (yellow outline) suggestive of volume and pressure overload (Echocardiographic images courtesy of Juan Lopez-Mattei, MD, MD Anderson Cancer Center, Houston, Texas). Definition of abbreviations: LA, left atrium; LV, left ventricle; RA, right atrium; RV right ventricle