Computed tomography of the chest. Equivalent axial tomographic sections from November 2011 (panel A) and from December 2012 (panel B) are shown. Pericardial thickening measuring up to 6 mm is seen in the first tomogram. The interval development of circumferential pleural thickening and enlargement of the mediastinal shadow is evident in the second tomogram. The changes are more pronounced in the right pleural space, where there is a loculated effusion. Differences in the diameter of the large airways between the two tomograms may relate to differences in the respiratory cycle.