Malignant tumours

In adult patients, sarcomas are the most frequently encountered primary cardiac malignant tumours, followed by lymphomas. Primary sarcomas of the heart form a group of tumours with variable differentiation and cell pleomorphism. According to histopathology, they are categorized as angiosarcomas, leiomyosarcomas, undifferentiated pleomorphic sarcoma, and myxofibrosarcomas. On cardiovascular magnetic resonance (CMR), most sarcomas appear extremely heterogeneous and usually cannot be differentiated from each other. Some cases with angiosarcomas can be identified by their specific appearance with early- and late-enhancement CMR. Some features of early- and late-enhancement CMR may argue for lymphoma, when discussing the differential diagnosis of a malignant primary cardiac mass.