• A benign or malignant neoplasm that affects the heart and/or the pericardium. Representative examples include atrial myxoma, cardiac myeloid sarcoma, and pericardial malignant mesothelioma.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• (neoplasm of the heart) A tumor (abnormal growth of tissue) of the heart.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• Cardiac tumors may be primary (benign or malignant) or metastatic (malignant). Myxoma, a benign tumor, is the most common type of primary cardiac tumor. Cardiac tumors may occur in any cardiac tissue. They can cause valvular or inflow-outflow tract obstruction, thromboembolism, arrhythmias, or pericardial disorders. Diagnosis is by...
  Merck Manuals
  Merck & Co., Inc., 2020