Echocardiographic Findings in Rupture of Long False Tendons: Report of Two Cases.

Long left ventricular false tendons, which connect distant sites on the ventricular endocardium, are common incidental echocardiographic findings. We describe two cases in which rupture of such long false tendons produced unusual, highly mobile, intracavitary echo densities that could be mistaken for other important pathologies, such as thrombus or vegetation. The differentiation of ruptured long false tendons and intact short apical false tendons from other entities they may mimic is described. (ECHOCARDIOGRAPHY, Volume 13, September 1996)