Cardiac Tamponade in the Setting of a Thymoma.

Thymoma is the most common neoplasm originating in the anterior mediastinum and accounts for a quarter of all mediastinal tumors. A pericardial effusion is an uncommon initial manifestation present in approximately 20% of patients. However, our patient had hemorrhagic pericardial effusions causing a cardiac tamponade with bilateral pleural effusions, nodular left pleural based masses, and ascites. In this report, we describe the unique features of our case and its management.