Pseudodefect of capitellum

Changed by Vincent Tatco, 14 Feb 2017

Updates to Article Attributes

Body was changed:

Pseudodefect of capitellum refers to an abrupt contour change of the posterolateral margin of capitellum on coronal sections and is is a potential MRI imaging pitfall giving rise to misinterpretations,

It occurs because the width of the articular surface of the capitellum is non-uniform and gradually tapers posteroinferiorly.

Differential diagnosis

  • osteochondral defect defect
    • occurs most commonly on the anterolateral aspect, not on the posterolateral aspect like pseudodefect
    • can have other pathological features like marrow edema or fluid filled cysts
  • -<p><strong>Pseudodefect of capitellum</strong> refers to an abrupt contour change of the posterolateral margin of capitellum on coronal sections and is a potential MRI imaging pitfall giving rise to misinterpretations,</p><p>It occurs because the width of the articular surface of the capitellum is non-uniform and gradually tapers posteroinferiorly.</p><h4>Differential diagnosis</h4><ul><li>
  • -<a href="/articles/osteochondral-defect">osteochondral defect</a><ul>
  • -<li>occurs most commonly on anterolateral aspect not on the posterolateral aspect like pseudodefect</li>
  • +<p><strong>Pseudodefect of capitellum</strong> refers to an abrupt contour change of the posterolateral margin of capitellum on coronal sections and is a potential MRI imaging pitfall giving rise to misinterpretations,</p><p>It occurs because the width of the articular surface of the capitellum is non-uniform and gradually tapers posteroinferiorly.</p><h4>Differential diagnosis</h4><ul><li>
  • +<a href="/articles/osteochondral-defect">osteochondral defect</a><ul>
  • +<li>occurs most commonly on the anterolateral aspect, not on the posterolateral aspect like pseudodefect</li>

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