aneurysmal pouch
aneurysmal sac
aneurysmatic pouch
aneurysmatic sac

Once the tube is sewn into the proximal and distal portions of the aorta, the aneurysmal sac is closed around the artificial tube.

Uflacker R, Brothers T. Filling of the aneurysmal sac with DEAC-Glucosamine in an animal model of AAA, following stent-graft repair.