Cardiac MRI is considered the gold standard for imaging cardiac and paracardiac masses. CMR has the ability to simultaneously demonstrate both intra- and extracardiac extent of a mass as well as delineate the spatial relationship of a mass with its surrounding structures. Tissue characterization with MRI can aid in limiting differential considerations and can often suggest a single diagnosis. CMR can also aid in treatment planning for surgical cases. Cardiac masses are often identified on other imaging modalities and are referred to cardiac MRI for better characterization. The most frequent cardiac mass is the intracavitary thrombus, followed by metastatic lesions. Of the primary cardiac tumors, the majority are benign with the most common being a myxoma.