Endovascular Treatment of a Mycotic Subclavian Artery Aneurysm Using Stent-graft

There are seen several CT section of upper thorax. A thick walled aneurysm (arrow) of left subclavian artery is seen on contrast enhanced CT. A cavitary lesion (arrow head) adjacent to aneurysm in the anterior lobe of left lung and anterior thorax wall is seen on level of aortic arc on CT images.

(A) CT angiography demonstrated a broad necked aneurysm (arrow) of left subclavian artery. (B) Selective left subclavian artery catheter angiography clearly showed the parent artery and the aneurysm (arrow). There is also seen thin left vertebral artery (arrow head).

(A) Native angiographic image of stent-grafts after balloon angioplasty shows the patency of parent artery and minimal filling due to endoleak (arrowhead) into the aneurysm sac. (B) Subtracted image clearly shows the type III endoleak (arrow).

One day after, Doppler US of left subclavian artery shows the endoleak (arrow) arising from a hole of stent-graft. There is also seen thrombosed aneusym sac (arrow head).

Five months after the endovascular treatment, CT images (A) and CT angiography (B) show that there is no filling into aneurysm sac (arrow) and the parent artery is patent.