PMC9892713_01
(A) Contrast-enhanced CT scan of the abdomen shows a pseudoaneurysm at the end of the abdominal aorta with local encapsulation. (B) Intraoperative DSA shows a pseudoaneurysm at the end of the abdominal aorta. (C) Intraoperative DSA shows no endoleaks.
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F1
Enhanced computed tomography (CT) examination of the abdomen showed that the distal end of the abdominal aorta showed significant ballooning, which was considered an aneurysm with mural thrombus or hematoma formation, and the rupture might increase (Figure 1A). On the same day, emergency endovascular repair of the abdominal aortic aneurysm was performed, and intraoperative digital subtraction angiography (DSA) revealed pseudoaneurysm formation at the distal end of the abdominal aorta (Figure 1B). On digital subtraction angiography with a pigtail catheter, a pseudoaneurysm was identified (Figure 1B). On repeat angiography, the terminal abdominal aortic pseudoaneurysm was not visualized, and no endoleaks were seen (Figure 1C).
(A) (B) Contrast-enhanced CT showed pseudoaneurysm formation in the middle and lower abdominal aorta and right internal iliac artery. (C) DSA showed no endoleaks. (D) CTA was reexamined 5 months after the operation.
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F2
Contrast-enhanced abdomen CT revealed a pseudoaneurysm of the distal abdominal aorta with a maximum diameter of 65.4 cm and a pseudoaneurysm of the right internal iliac artery (Figure 2A 2 B). On repeat angiography, the terminal abdominal aortic pseudoaneurysm was not visualized, and no endoleaks were seen (Figure 2C). The patient's reexamination of the thoracoabdominal aorta by CTA 5 months after the surgery showed that the stent in the abdominal aorta and bilateral iliac arteries was in good shape without obvious abnormality and migration (Figure 2D).
(A) DSA shows pseudoaneurysm formation in the middle and lower abdominal aorta. (B) No endoleaks on DSA after EVAR is noted.
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F3
Intraoperative DSA showed pseudoaneurysm formation in the middle and lower segment of the abdominal aortic aneurysm (Figure 3A). On repeat angiography, the pseudoaneurysm at the end of the abdominal aorta was not visualized, and no endoleaks were seen (Figure 3B).
(A) Contrast-enhanced CT scan of the abdomen shows a pseudoaneurysm at the end of the abdominal aorta. (B) Intraoperative DSA shows a pseudoaneurysm at the end of the abdominal aorta and occlusion of right common iliac artery. (C) Intraoperative DSA shows no endoleaks.
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F4
Enhanced CT examination of the abdomen showed that the distal end of the abdominal aorta showed significant ballooning, which was considered an aneurysm with mural thrombus or hematoma formation (Figure 4A). Emergency endovascular repair of the abdominal aortic aneurysm was performed, and intraoperative DSA revealed pseudoaneurysm formation at the distal end of the abdominal aorta and occlusion of right common iliac artery (Figure 4B). On repeat angiography, the terminal abdominal aortic pseudoaneurysm was not visualized, and no endoleaks were seen (Figure 4C).