myocardium cancer (MONDO_0004749) is a malignant neoplasm involving the myocardium. Also known as: cancer of myocardium, malignant myocardial neoplasm, malignant myocardial tumor, malignant myocardial tumour, malignant myocardium neoplasm, malignant neoplasm of myocardium, malignant neoplasm of the myocardium, malignant tumor of myocardium.