Cavum vergae

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The cavum vergae(CV), along with the cavum septum pellucidum (CSP) that is immediately anterior to it, is a persistence of the embryological fluid-filled space between the leaflets of the septum pellucidum and is a common anatomical variant. The CVcavum vergae is sometimes referred to as the 6th ventricle ³.

Gross anatomy

The CVcavum vergae is the posterior extension of the ~~CSP~~cavum septum pellucidum, posterior to the anterior columns of the fornix, lying anterior to the splenium of the corpus callosum, but it may exist independently ^1-3.

Relations

The cavum vergae has important immediate anatomical relations ³:

anteriorly: cavum septum pellucidum
posteriorly: splenium of the corpus callosum
superiorly: body of the corpus callosum
inferiorly: transverse fornix

Development

The septa of the cavum septum pellucidum at vergae begin to fuse from posterior to anterior from approximately 24 weeks gestation. By term, the cavum vergae is closed in 97% of babies, ~~although~~whereas the ~~CSP persists~~cavum septum pellucidum persists in most at this stage⁴. ~~CSP~~Cavum septum pellucidum closure to form a single septum pellucidum occurs by 6 months of age in 85% of cases~~, but~~ but may persist to adulthood in 15%³. Because of this ordered obliteration, a ~~CSP~~cavum septum pellucidum almost always accompanies a CVcavum vergae ^1-2.

Differential diagnosis

Related pathology

cavum vergae cyst

-<p>The <strong>cavum vergae</strong> (CV), along with the <a href="/articles/cavum-septum-pellucidum-3">cavum septum pellucidum</a> (CSP) is a persistence of the embryological fluid-filled space between the leaflets of the <a href="/articles/septum-pellucidum">septum pellucidum</a> and is a common anatomical variant. The CV is sometimes referred to as the <strong>6th ventricle</strong> <sup>3</sup>. </p><h4>Gross anatomy</h4><p>The CV is the posterior extension of the CSP, posterior to the anterior columns of the <a href="/articles/fornix-brain">fornix</a>, lying anterior to the splenium of the <a href="/articles/corpus-callosum">corpus callosum</a>, but it may exist independently <sup>1-3</sup>. </p><h5>Relations <sup>3</sup>
~~-</h5><ul>~~
+<p>The <strong>cavum vergae (CV)</strong>, along with the <a href="/articles/cavum-septum-pellucidum-3">cavum septum pellucidum (CSP)</a> that is immediately anterior to it, is a persistence of the embryological fluid-filled space between the leaflets of the <a href="/articles/septum-pellucidum">septum pellucidum</a> and is a common anatomical variant. The cavum vergae is sometimes referred to as the <strong>6th ventricle</strong> <sup>3</sup>. </p><h4>Gross anatomy</h4><p>The cavum vergae is the posterior extension of the cavum septum pellucidum, posterior to the anterior columns of the <a href="/articles/fornix-brain">fornix</a>, lying anterior to the splenium of the <a href="/articles/corpus-callosum">corpus callosum</a>, but it may exist independently <sup>1-3</sup>. </p><h5>Relations</h5><p>The cavum vergae has important immediate anatomical relations <sup>3</sup>:</p><ul>
-</ul><h4>Development</h4><p>The septa of the cavum septum pellucidum at vergae begin to fuse from posterior to anterior from approximately 24 weeks gestation. By term, the cavum vergae is closed in 97% of babies, although the CSP persists in most at this stage<sup>4</sup>. CSP closure to form a single septum pellucidum occurs by 6 months of age in 85% of cases, but may persist to adulthood in 15%<sup>3</sup>. Because of this ordered obliteration, a CSP almost always accompanies a CV<sup>1-2</sup>.</p><h4>Differential diagnosis</h4><ul>
+</ul><h4>Development</h4><p>The septa of the cavum septum pellucidum at vergae begin to fuse from posterior to anterior from approximately 24 weeks gestation. By term, the cavum vergae is closed in 97% of babies, whereas the <a href="/articles/cavum-septum-pellucidum-3">cavum septum pellucidum</a> persists in most at this stage<sup>4</sup>. Cavum septum pellucidum closure to form a single septum pellucidum occurs by 6 months of age in 85% of cases but may persist to adulthood in 15%<sup>3</sup>. Because of this ordered obliteration, a cavum septum pellucidum almost always accompanies a cavum vergae <sup>1-2</sup>.</p><h4>Differential diagnosis</h4><ul>

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