Preauricular groove
Updates to Synonym Attributes
Updates to Synonym Attributes
Updates to Article Attributes
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The preauricular groove or sulcus is a normal variant that is described to be characteristic of the bony female pelvis. It occurs at the insertion of the anterior sacroiliac ligament.
Epidemiology
The preauricular groove is present in ~25% of women and ~5% of men 1.
Radiographic features
The preauricular groove is in the inferior ilium adjacent to the sacro-iliac joint, and can vary from slightly concavity to a deep groove with overhanging edges 1,2.
-<p>The <strong>preauricular groove</strong> or <strong>sulcus</strong> is a normal variant that is described to be characteristic of the bony female <a title="Pelvis" href="/articles/pelvis-1">pelvis</a>. It occurs at the insertion of the anterior sacroiliac ligament. </p><h4>Epidemiology</h4><p>The preauricular groove is present in ~25% of women and ~5% of men <sup>1</sup>.</p><h4>Radiographic features</h4><p>The preauricular groove is in the inferior ilium adjacent to the <a title="Sacro-iliac joint" href="/articles/sacroiliac-joint">sacro-iliac joint</a>, and can vary from slightly concavity to a deep groove with overhanging edges <sup>1,2</sup>. </p>- +<p>The <strong>preauricular groove</strong> or <strong>sulcus</strong> is a normal variant that is described to be characteristic of the bony female <a href="/articles/pelvis-1">pelvis</a>. It occurs at the insertion of the anterior sacroiliac ligament. </p><h4>Epidemiology</h4><p>The preauricular groove is present in ~25% of women and ~5% of men <sup>1</sup>.</p><h4>Radiographic features</h4><p>The preauricular groove is in the inferior ilium adjacent to the <a href="/articles/sacroiliac-joint">sacro-iliac joint</a>, and can vary from slightly concavity to a deep groove with overhanging edges <sup>1,2</sup>. </p>
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