A Hypo-Echoic, Intramyocardial Space: Echocardiographic Characteristics of an Intramyocardial Dissecting Hematoma

An 82-yr-old woman with a history of renal failure and diabetes was admitted with acute myocardial infarction, and required endotracheal intubation because of low cardiac output. Diagnostic procedures included cardiac catheterization, which revealed nonobstructive coronary artery disease, and a transesophageal echocardiographic (TEE) examination, which revealed a large pericardial effusion without evidence of tamponade, and an area of thickening...