瘤内塞栓術後再発腎動脈瘤

抄録

We report a case of recurrent renal artery aneurysm after endosaccular packing with coils. A 60-year-old female incidentally diagnosed with left renal artery aneurysm was referred to our department. Post contrast CT revealed a wide-neck aneurysm at the ventral branch of the left renal artery. The upper polar branch was involved by the dome of the aneurysm. Endosaccular packing of the aneurysm was performed while preserving the parent artery and upper polar branch, which resulted in minimal dome filling on the renal angiography immediately after embolization. Two years after embolization, coil compaction and reperfusion of the dome of the aneurysm were detected on MR angiography. A second endosaccular embolization was performed using balloon-assist technique, and complete occlusion was achieved while preserving the parent artery and upper polar branch. No recurrent aneurysm was observed during the 4-year follow-up period.