Persistent primitive olfactory artery
Disclosures
- updated 3 May 2022:
Nothing to disclose
Updates to Article Attributes
Body
was changed:
A Persistentpersistent primitive olfactory artery (PPOA) is a rare variant of the proximal anterior cerebral artery 1,2. It is proposed to be more prone to aneurysms due to its sharp hairpin-like turn. Embryologically, the PPOApersistent primitive olfactory artery is the rostral division of the primitive internal carotid artery.
Gross anatomy
There are two variants of PPOApersistent primitive olfactory artery 1. :
-
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
-
type 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="/articles/anterior-cerebral-artery">anterior cerebral artery</a> <sup>1,2</sup>. It is proposed to be more prone to <a href="/articles/intracranial-aneurysm-overview">aneurysms</a> due to its sharp hairpin-like turn. Embryologically, the PPOA is the rostral division of the primitive <a href="/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>- +<p>A <strong>persistent primitive olfactory artery (PPOA)</strong> is a rare variant of the proximal <a href="/articles/anterior-cerebral-artery">anterior cerebral artery</a> <sup>1,2</sup>. It is proposed to be more prone to <a href="/articles/intracranial-aneurysm-overview">aneurysms</a> due to its sharp hairpin-like turn. Embryologically, the persistent primitive olfactory artery is the rostral division of the primitive <a href="/articles/internal-carotid-artery-1">internal carotid artery</a>.</p><h4>Gross anatomy</h4><p>There are two variants of persistent primitive olfactory artery <sup>1</sup>:</p><ul>
Unable to process the form. Check for errors and try again.