We performed percutaneous balloon pericardiotomy and pulmonary valvuloplasty in a woman affected with cardiac and pericardial involvement from a primary pulmonary adenocarcinoma. Pericardial window was indicated for a recurrent, symptomatic, pericardial effusion. Valvular stenosis was severe and related to metastatic infiltration of cardiac tissue. Open surgery was avoided and the procedures were completed in two steps under local anesthesia in less than 60 min. The patient had no recurrence of pulmonary stenosis or pericardial effusion at 7 months post treatment. Transcatheter techniques are successful in helping to manage malignant diseases with cardiac metastasis, particularly in critically-ill patients. It may become the preferred treatment for avoiding a more invasive procedure for patients with a limited life expectancy.