Dorello canal

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Dorello's canal channels the abducens nerve (CN VI) from the pontine cistern to the cavernous sinus.

Gross anatomy

It is found at the medial most end of the petrous ridge at the confluence of the inferior petrosal sinus, basal sinus and cavernous sinus.

Boundaries

Superiorly it is bounded by the petrosphenoidal ligament (Gruber's ligament).
Inferiorly, it is bound by a bony notch formed (from lateral to medial) by the:
- petrous ridge
- petrosphenoidal suture
- superolateral aspect of the clivus, immediately beneath the posterior clinoid

Etymology

Named after Primo Dorello, an Italian anatomist.

-<p><strong>Dorello's canal</strong> channels the <a href="/articles/abducens-nerve" title="Abducens nerve (CN VI)">abducens nerve</a> (CN VI) from the <a href="/articles/pontine-cistern">pontine cistern</a> to the <a href="/articles/cavernous-sinus">cavernous sinus</a>. </p><p>It is found at the medial most end of the <a href="/articles/petrous-ridge">petrous ridge</a> at the confluence of the <a href="/articles/inferior-petrosal-sinus">inferior petrosal sinus</a>, <a href="/articles/basal-sinus">basal sinus</a> and <a href="/articles/cavernous-sinus">cavernous sinus</a>. Superiorly it is bounded by the <a href="/articles/petrosphenoidal-ligament">petrosphenoidal ligament</a> (<a href="/articles/gruber-s-ligament">Gruber's ligament</a>). Inferiorly, it is bound by a bony notch formed (from lateral to medial) by the:</p><ul>
~~-<li> petrous ridge</li>~~
~~-<li><a href="/articles/petrosphenoidal-suture">petrosphenoidal suture</a></li>~~
~~-<li>superolateral aspect of the <a href="/articles/clivus">clivus</a>, immediately beneath the <a href="/articles/posterior-clinoid">posterior clinoid</a>~~
~~-</li>~~
~~-</ul><h4>Etymology</h4><p>Named after <strong>Primo Dorello</strong>, an Italian anatomist.</p><h4>See also</h4><ul><li>~~
-<a href="/articles/gradenigo_syndrome" title="Gradenigo syndrome">Gradenigo syndrome</a>: inflammation of the nerve in Dorello's canal secondary to <a href="/articles/petrous_apicitis" title="Petrous apicitis">petrous apicitis</a>. </li></ul>
+<p><strong>Dorello's canal</strong> channels the <a href="/articles/abducens-nerve">abducens nerve</a> (CN VI) from the <a href="/articles/pontine-cistern">pontine cistern</a> to the <a href="/articles/cavernous-sinus">cavernous sinus</a>. </p><h4>Gross anatomy</h4><p>It is found at the medial most end of the <a href="/articles/petrous-ridge">petrous ridge</a> at the confluence of the <a href="/articles/inferior-petrosal-sinus">inferior petrosal sinus</a>, <a href="/articles/basal-sinus">basal sinus</a> and <a href="/articles/cavernous-sinus">cavernous sinus</a>.</p><h5>Boundaries</h5><ul>
+<li>Superiorly it is bounded by the <a href="/articles/petrosphenoidal-ligament">petrosphenoidal ligament</a> (<a href="/articles/gruber-s-ligament">Gruber's ligament</a>).</li>
+<li>
+<span style="line-height:1.6em">Inferiorly, it is bound by a bony notch formed (from lateral to medial) by the:</span><ul>
+<li>petrous ridge</li>
+<li><a href="/articles/petrosphenoidal-suture">petrosphenoidal suture</a></li>
+<li>superolateral aspect of the <a href="/articles/clivus">clivus</a>, immediately beneath the <a href="/articles/posterior-clinoid">posterior clinoid</a>
+</li>
+</ul>
+</li>
+</ul><h4>Etymology</h4><p>Named after <strong>Primo Dorello</strong>, an Italian anatomist.</p><h4>See also</h4><ul><li>
+<a href="/articles/gradenigo_syndrome">Gradenigo syndrome</a>: inflammation of the nerve in Dorello's canal secondary to <a href="/articles/petrous_apicitis">petrous apicitis</a>. </li></ul>