Fig. 1

a Chest X-ray taken on admission displaying bilateral mediastinal widening. b Chest CT displaying a fat-containing cystic mass with solid components in the anterior mediastinum, and pleural effusion in the right side
a Chest X-ray taken on admission displaying bilateral mediastinal widening. b Chest CT displaying a fat-containing cystic mass with solid components in the anterior mediastinum, and pleural effusion in the right side