lipomatous infiltration

li·po·ma·tous in·fil·tra·tion

nonencapsulated adipose tissue forming a lipomalike mass, usually in the cardiac interatrial septum where it may cause arrhythmia and sudden death.

li·po·ma·tous in·fil·tra·tion

(li-pō'mă-tŭs in'fil-trā'shŭn)
Nonencapsulated adipose tissue forming a lipomalike mass, usually in the cardiac interatrial septum where it may cause arrhythmia and sudden death.
References in periodicals archive ?
Differential diagnoses for this mass were atrial myxoma, intracardiac thrombus, lipomatous infiltrations, and calcified mitral annulus.