Persistent primitive olfactory artery
Updates to Article Attributes
Body
was changed:
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 Embryologically, the POA is the rostral division of the primitive internal carotid artery. ThereThere are two variants of PPOA1.
1. Type 1:
The anomalous artery arises from the internal carotid artery, runs along the olfactory tract and makes a hairpin bend to supply the territory of the distal anterior cerebral artery.
2. Type 2:
The artery arises from the anterior cerebral artery and passes through the cribriform plate to to supply the nasal cavity as the ethmoidal artery.
Imaging
CTA
DSA/Catheter Angiogram
MRA
-<p>PPOA is a rare variant of the proximal <a title="Anterior cerebral artery" href="/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. <span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:advptimes; font-size:10pt">Embryologically, the POA is the rostral division of the primitive <a title="Internal carotid artery" href="/articles/internal-carotid-artery-1">internal carotid artery</a>. T</span><span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:times new roman,stixgeneral,serif; font-size:15.999099731445312px">here are two variants of PPOA<sup>1</sup>. </span></p><p><span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:times new roman,stixgeneral,serif; font-size:15.999099731445312px">1. Type 1:</span></p><p><span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:times new roman,stixgeneral,serif; font-size:15.999099731445312px"> The anomalous artery arises from the internal carotid artery, runs along the olfactory tract and makes a hairpin bend to supply the territory of the distal anterior cerebral artery. </span></p><p><span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:times new roman,stixgeneral,serif; font-size:15.999099731445312px">2. Type 2: </span></p><p><span style="caret-color:rgb(0, 0, 0); color:rgb(0, 0, 0); font-family:times new roman,stixgeneral,serif; font-size:15.999099731445312px">The artery arises from the anterior cerebral artery and passes through the <a title="Cribriform plate" href="/articles/cribriform-plate">cribriform plate</a> to supply the nasal cavity as the ethmoidal artery.</span></p><p>Imaging</p><p>CTA</p><p>DSA/Catheter Angiogram</p><p>MRA</p><p> </p><p> </p>- +<p>PPOA 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 POA is the rostral division of the primitive <a href="file:///articles/internal-carotid-artery-1">internal carotid artery</a>. There are two variants of PPOA<sup>1</sup>. </p><p>1. Type 1:</p><p> The anomalous artery arises from the internal carotid artery, runs along the olfactory tract and makes a hairpin bend to supply the territory of the distal anterior cerebral artery. </p><p>2. Type 2: </p><p>The artery arises from the anterior cerebral artery and passes through the <a href="file:///articles/cribriform-plate">cribriform plate</a> to supply the nasal cavity as the ethmoidal artery.</p><p><strong>Imaging</strong></p><p>CTA</p><p>DSA/Catheter Angiogram</p><p>MRA</p><p> </p>
Unable to process the form. Check for errors and try again.