benign neoplasm of epicardium (Monarch Disease Ontology entry MONDO_0021508) is a benign neoplasm that involves the epicardium. Also known as: benign epicardial neoplasm, benign epicardial tumor, benign epicardial tumour, benign neoplasm of the epicardium, benign tumor of epicardium, benign tumor of the epicardium, benign tumour of epicardium, benign tumour of the epicardium.