CT
Coronal C+ CTPA
Axial C+ CTPA
Axial C+ CTPA
No pulmonary embolism. Stenting spans the left jugular brachiocephalic vein and SVC which are all occluded. Features of collateralisation with contrast in the intercostal and azygos venous system, and in the IVC and its tributaries. Incidental parafalciform enhancement demonstrated in the liver (focal hot spot sign) consistent with the known SVC obstruction.