Intracardiac Metastasis as the Initial Presentation ofNon–Small Cell Lung Cancer

Cardiac tumors have generally been considered to be rare. They are often found incidentally, as they tend to remain clinically silent, but they can sometimes present with symptoms secondary to obstruction, embolization, or invasion of the myocardium. Most cardiac tumors are secondary tumors from metastases, with primary cardiac tumors constituting approximately 15% of all cardiac tumors.1 Although melanoma and pleural mesothelioma often have cardiac involvement, the most common cancers to be identified in cardiac metastases are lung cancer (36%-39%), breast cancer (10%-12%), and hematologic cancers (10%-21%).