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Case Reports
. 2017 Mar 24;10(1):44-47.
doi: 10.3400/avd.cr.16-00119. Epub 2017 Mar 31.

Persistent Sciatic Artery Aneurysm with Limb Ischemia: A Report of Two Cases

Koichi Morisaki  1 , Terutoshi Yamaoka  1 , Kazuomi Iwasa  1 , Sosei Kuma  2 , Jin Okazaki  3
Affiliations
Case Reports

Persistent Sciatic Artery Aneurysm with Limb Ischemia: A Report of Two Cases

Koichi Morisaki et al. Ann Vasc Dis. .

Abstract

We report two cases of persistent sciatic artery (PSA) aneurysm with limb ischemia. Physicians who treat peripheral artery disease should be aware that PSA is a very rare congenital malformation of the lower extremities that is potentially hazardous, and that revascularization should be performed when a PSA aneurysm is treated.

Keywords: aneurysm; limb ischemia; persistent sciatic artery.

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Figures

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Fig. 1 (a) CT showing a fusiform aneurysmal dilation and occluded PSA. The popliteal artery was fed by collateral circulation. (b) PSA (arrow) and fusiform aneurysmal dilation of PSA (arrowhead). (c) Filling defects of the popliteal artery were detected below the knee. Endovascular treatment of distal embolization from a PSA aneurysm had been performed three times. (d) Postoperative computed tomography showing a patent bypass graft. (e) Postoperative angiography showing a patent bypass graft.
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Fig. 2 Intraoperative findings following a transverse incision of the left buttock and resected persistent sciatic artery aneurysm.
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Fig. 3 (a) Preoperative CT showing a complete PSA with aneurysm formation and an incomplete superficial femoral artery that does not reach the popliteal artery. (b) CT showing an aneurysm that extends for 30 mm. (c) Angiography showing a filling defect of the left tibioperoneal trunk. (d) Postoperative CT showing a patent bilateral femoropopliteal bypass graft. (e) A left PSA aneurysm is completely excluded (arrow). Retrograde flow into right PSA aneurysm persists (arrowhead).
See this image and copyright information in PMC

References

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