Persistent primitive olfactory artery
Updates to Article Attributes
Body
was changed:
Persistent primitive olfactory artery (PPOA) is a rare variant of the proximal anterior cerebral artery1,2. It is proposed to be more prone to aneurysms due to its sharp hairpin-like turn. Embryologically, the PPOA is the rostral division of the primitive internal carotid artery.
Gross anatomy
There are two variants of PPOA1.
Type-
type 1
- arises from the internal carotid artery
- runs anteriorly along the olfactory tract
- hairpin turn to supply the territory of the distal anterior cerebral artery
Typetype 2
- arises from the anterior cerebral artery
- passes through the cribriform plate to supply the nasal cavity as the ethmoidal artery
-<p><strong>Persistent primitive olfactory artery (PPOA)</strong> is a rare variant of the proximal <a href="file:///articles/anterior-cerebral-artery">anterior cerebral artery</a><sup>1,2</sup>. It is proposed to be more prone to aneurysms due to its sharp hairpin-like turn. Embryologically, the PPOA is the rostral division of the primitive <a href="file:///articles/internal-carotid-artery-1">internal carotid artery</a>.</p><p>There are two variants of PPOA<sup>1</sup>. </p><h5>Type 1</h5><ul>- +<p><strong>Persistent primitive olfactory artery (PPOA)</strong> is a rare variant of the proximal <a href="file:///articles/anterior-cerebral-artery">anterior cerebral artery</a> <sup>1,2</sup>. It is proposed to be more prone to aneurysms due to its sharp hairpin-like turn. Embryologically, the PPOA is the rostral division of the primitive <a href="file:///articles/internal-carotid-artery-1">internal carotid artery</a>.</p><h4>Gross anatomy</h4><p>There are two variants of PPOA <sup>1</sup>. </p><ul>
- +<li>type 1<ul>
-</ul><h5>Type 2</h5><ul>- +</ul>
- +</li>
- +<li>type 2<ul>
- +</ul>
- +</li>
Unable to process the form. Check for errors and try again.