Fig. 1

Chest contrast-enhanced computed tomography revealing a huge mass shadow with a nonuniform contrast effect inside, measuring 8.3 cm × 6.7 cm × 12.3 cm from the neck to the upper mediastinum. A Horizontal view, B sagittal view, and C, D coronal view. The red asterisk is aberrant right subclavian artery. SVC superior vena cava, LBCV left brachiocephalic vein, RCCA right common carotid artery, Ao aorta, PA pulmonary artery