Fig. 3

Computed tomography and angiography findings from Patient 3. a Contrast-enhanced computed tomography after the percutaneous coronary intervention revealed contrast extravasation (arrow), a hematoma at the mediastinum (arrowhead), and compression of the right atrium and ventricle. b Angiography after the contrast-enhanced computed tomography revealed contrast extravasation proximal to the left internal mammary artery (arrow) with arterial spasm (arrowhead)