Abstract
A 66-year-old man with horseshoe kidney was admitted to our hospital with a non-pulsatile abdominal tumor. He had undergone endovascular aortic repair with a hand-made stent graft at age 57, and an exclusion operation for type 1 endoleak at the age of 61. Computed tomography (CT) showed redilation of an excluded abdominal aortic aneurysm and an imaging effect of backflow of the lumbar arteries. The aneurysm was exposed and opened, and 1 pair of lumbar arteries which showed back bleeding was closed. Postoperative CT did not reveal an imaging effect the aneurysm sac. The patient was discharged on the 14th postoperative day. This case suggests that type 2 endoleak for lumber arteries may cause aneurysmal dilation after endovascular aortic repair.
