(a) Computed tomography (CT) scanogram/scout shows enlarged cardiac silhouette with blunting of the left costophrenic sulcus. (b) Nonenhanced chest CT image reveals a nearly isoattenuating nodular mass arising from the left posterior pericardial wall (arrow) with a large circumferential pericardial effusion (asterisks) and bilateral pleural effusions without signs of cardiac tamponade. (c) Contrast-enhanced chest CT scan shows a well-defined, enhancing nodule (arrow).
