The commonest tumor of the myocardium is
High-Yield Explanation
Primary benign cardiac tumors are seen mostly in children and young adults and include atrial myxoma, rhabdomyoma, fibroma, and endocardial fibroelastoma.Atrial myxomas are often seen as a round or multilobar mass in the left atrium (75%), right atrium (20%), or ventricles or mixed chambers (5%). They typically have inhomogeneous brightness in the center of cine steady-state free precession imaging due to their gelatinous contents and may havea pedunculated attachment to the fossa ovalis.Primary malignant cardiac tumors are extremely rare and include angiosarcoma, fibrosarcoma, rhabdomyosarcoma, and liposarcoma.Reference: Harrison&;s Principles of Internal Medicine; 19th edition; Chapter 270e Noninvasive Cardiac Imaging: Echocardiography, Nuclear Cardiology, and Magnetic Resonance/Computed Tomography Imaging