Fig. 11

Angiosarcoma (pathologically proven after thoracotomy and complete excision): A 33-year-old male patient clinically presented with cough, dyspnea, chest pain, and congested neck veins. He underwent MDCT of the chest that revealed an anterior mediastinal mass encroaching upon the right hemithorax. a Axial T1 WI, b and f axial and coronal T2 WI and c STIR WI show a large well-defined rather ovoid-shaped anterior mediastinal mass encroaching upon and occupying most of the right hemithorax. It displays heterogeneous signal on all pulse sequences with fluid-fluid levels reflecting different ages of blood with no sizeable non-hemorrhagic solid components. A contralateral shift of the mediastinum is noted. Associated findings: ipsilateral pleural thickening and minimal pleural effusion. d DWI and e ADC map: not assessed because of the lesion’s overall hemorrhagic nature with no definite soft tissue components as apparent on the conventional MR images