左からa、b
Fig.1
a : Axial coronal contrast-enhanced CT showing the mildly enhanced metastatic tumor surrounding the left subclavian artery（arrows）.
b : CT angiography demonstrating the left subclavian pseudoaneurysm. Note that more than 60％ of the left common carotid artery stenosis is caused by compression from the pseudoaneurysm.
Fig.2
Conventional DSA after the stent-assisted coil embolization. Although complete embolization could not be achieved（arrow）, but the contrast filling of the pseudoaneurysm is markedly decreased.