Figure 1.

(A) CT-angiography of a patient with an intraluminal thrombus located at the distal end of the frozen elephant trunk stent graft diagnosed on the third postoperative day (1). Oral anticoagulation with a vitamin K inhibitor resulted in complete thrombus remission within 40 days (2). (B) TEVAR extension in a patient with mega-aortic syndrome and intraluminal thrombus formation after frozen elephant trunk implantation. The frozen elephant trunk stent graft is probed via a transfemoral access. Angiography showed an expected Type 1b endoleak (1). After TEVAR-extension, the endoleak was sealed and the intraluminal thrombus was excluded completely (2). Figures were adapted with permission from Martens et al.