Primary Cardiac Sarcoma Involving the Mitral Valve, an Insidious Form of Heart Failure

• Multimodality cardiac imaging can assess cardiac sarcomas and guide biopsy. • Cardiac MRI differentiates cardiac tumors from thrombus and identifies thrombus tumor. • Cardiac sarcoma treatment includes surgical and adjuvant options. • Survival rates of cardiac sarcoma are based on tumor location within the heart.