“…It has also been noted that metastases in the myocardium elicit various rhythm disturbances (Queckenstedt, 1956;Drouin et al, 1957;Cupp, Woolvin, and Immon, 1958). It has further been pointed out that metastasis to the myocardium quite frequently involves the pericardium as well (Kruml and Widimsky, 1959) which improves the chances of a diagnosis on the electrocardiogram.…”