Persistent sciatic artery
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A persistent sciatic artery is a rare vascular anomaly where there is continuation of the internal iliac artery into the thigh through the greater sciatic notch 2. It may be the dominant artery supplying the leg, in which case the superficial femoral artery may be small. It may be bilateral in up to 25% of cases.
Just as with any artery it can be complicated byaneurysm formation or early early atherosclerosis.
Cowie's sign – described as a diminished or absent femoral pulse in combination with a palpable popliteal pulse – is considered to be pathognomonic for a persistent sciatic artery.4
-<p>A <strong>persistent sciatic artery</strong> is a rare vascular anomaly where there is continuation of the <a href="/articles/internal-iliac-artery">internal iliac artery</a> into the thigh through the <a href="/articles/greater-sciatic-notch">greater sciatic notch</a> <sup>2</sup>. It may be the dominant artery supplying the leg, in which case the superficial femoral artery may be small. It may be bilateral in up to 25% of cases.</p><p>Just as with any artery it can be complicated by <a href="/articles/aneurysm">aneurysm</a> formation or early <a href="/articles/arteriosclerosis">atherosclerosis</a>.</p>- +<p>A <strong>persistent sciatic artery</strong> is a rare vascular anomaly where there is continuation of the <a href="/articles/internal-iliac-artery">internal iliac artery</a> into the thigh through the <a href="/articles/greater-sciatic-notch">greater sciatic notch</a> <sup>2</sup>. It may be the dominant artery supplying the leg, in which case the superficial femoral artery may be small. It may be bilateral in up to 25% of cases.</p><p>Just as with any artery it can be complicated by <a href="/articles/aneurysm">aneurysm</a> formation or early <a href="/articles/arteriosclerosis">atherosclerosis</a>.</p><p>Cowie's sign – described as a diminished or absent femoral pulse in combination with a palpable popliteal pulse – is considered to be pathognomonic for a persistent sciatic artery.<sup>4</sup></p>
References changed:
- 4. van Hooft IM, Zeebregts CJ, van Sterkenburg SM, de Vries WR, Reijnen MM. The persistent sciatic artery. European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery. 37 (5): 585-91. <a href="https://doi.org/10.1016/j.ejvs.2009.01.014">doi:10.1016/j.ejvs.2009.01.014</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/19231248">Pubmed</a> <span class="ref_v4"></span>
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