On (b)(6) 2022, this patient underwent an endovascular treatment for an impending rupture of the descending thoracic aorta using gore® tag® conformable thoracic stent grafts with active control system and a gore® dryseal flex introducer sheath (dsf, 22fr).The final angiography showed no problem in the access vessels.The patient tolerated the procedure.On (b)(6) 2022, follow-up examination showed a pseudoaneurysm formation in the right external iliac artery which was the access vessel of initial procedure.On the same day, a gore® viabahn® endoprosthesis (8 mm x 5 cm) was implanted in the right external iliac artery.The patient tolerated the procedure.Reportedly, the diameter of the right external iliac artery was narrow (5.7-6.4 mm).According to the gore® dryseal flex introducer sheath sizing guide, the nominal outer diameter of the 22fr sheath is 8.2 mm.
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