Persistent hypoglossal artery
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Apersistent hypoglossal artery is one of the persistent carotid-vertebrobasilar anastomoses. It is second in frequency to the trigeminal artery which is present approximately six times as often.
It arises from the distal cervical ICA, usually between C1 and C3. After passing through an enlarged hypoglossal canal, it joins the basilar artery inferiorly. If large, the ipsilateral vertebral artery and PCOM are often often hypoplastic or absent. There is an association with concurrent aneurysms.
-<p>A <strong>persistent hypoglossal artery</strong> is one of the <a href="/articles/persistent-carotid-vertebrobasilar-anastomoses-2">persistent carotid-vertebrobasilar anastomoses</a>. It is second in frequency to the <a href="/articles/persistent-primitive-trigeminal-artery">trigeminal artery</a> which is present approximately six times as often. </p><p>It arises from the distal cervical <a href="/articles/ica">ICA</a>, usually between C1 and C3. After passing through an enlarged <a href="/articles/hypoglossal-canal">hypoglossal canal</a>, it joins the <a href="/articles/basilar-artery">basilar artery</a> inferiorly. If large, the ipsilateral <a href="/articles/vertebral-artery">vertebral artery</a> and <a title="PCOM" href="/articles/posterior-communicating-artery">PCOM</a> are often hypoplastic or absent. There is an association with concurrent aneurysms. </p>- +<p>A <strong>persistent hypoglossal artery</strong> is one of the <a href="/articles/persistent-carotid-vertebrobasilar-anastomoses-2">persistent carotid-vertebrobasilar anastomoses</a>. It is second in frequency to the <a href="/articles/persistent-primitive-trigeminal-artery">trigeminal artery</a> which is present approximately six times as often. </p><p>It arises from the distal cervical <a href="/articles/ica">ICA</a>, usually between C1 and C3. After passing through an enlarged <a href="/articles/hypoglossal-canal">hypoglossal canal</a>, it joins the <a href="/articles/basilar-artery">basilar artery</a> inferiorly. If large, the ipsilateral <a href="/articles/vertebral-artery">vertebral artery</a> and <a href="/articles/posterior-communicating-artery">PCOM</a> are often hypoplastic or absent. There is an association with concurrent aneurysms. </p>
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Image 3 CT (C+ arterial phase) ( create )
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