Diaphragmatic eventration

Changed by Lalit Sain, 23 Nov 2014

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Diaphragmatic eventration refers to an abnormal contour of the diaphragmatic dome and is typically due to incomplete muscularization of the diaphragm with a thin membranous sheet replacing normal diaphragmatic muscle. Over time this region stretches and on inspiration does not contract normally.

Frequently eventration is seen in the a anteromedial portion of the right hemidiaphragm.

Radiographic features

Plain film

Elevation of the affected portion of the diaphragm is usually seen as a smooth hump on the normal contour of the hemidiaphragm.

Differential diagnosis

Possible consderations on plain film includes

lung
- consolidation (e.g. round pneumonia)
- lung mass
- collapse
- pulmonary infarction
pleura
- subpulmonic pleural effusion
- pleural mass
diaphragmatic mass
subdiaphragmatic region
- liver / stomach mass
- subdiaphragmatic collection
- phrenic nerve palsy
- hemiplegia

-<p><strong>Diaphragmatic eventration</strong> refers to an abnormal contour of the diaphragmatic dome and is typically due to incomplete muscularization of the diaphragm with a thin membranous sheet replacing normal diaphragmatic muscle. Over time this region stretches and on inspiration does not contract normally. </p><p>Frequently eventration is seen in the a anteromedial portion of the right hemidiaphragm.</p><h4>Radiographic features</h4><h5>Plain film</h5><p>Elevation of the affected portion of the diaphragm is usually seen as a smooth hump on the normal contour of the hemidiaphragm.</p><h4>Differential diagnosis</h4><p>Possible consderations on plain film includes</p><ul>
+<p><strong><em></em>Diaphragmatic eventration</strong> refers to an abnormal contour of the diaphragmatic dome and is typically due to incomplete muscularization of the diaphragm with a thin membranous sheet replacing normal diaphragmatic muscle. Over time this region stretches and on inspiration does not contract normally. </p><p>Frequently eventration is seen in the a anteromedial portion of the right hemidiaphragm.</p><h4>Radiographic features</h4><h5>Plain film</h5><p>Elevation of the affected portion of the diaphragm is usually seen as a smooth hump on the normal contour of the hemidiaphragm.</p><h4>Differential diagnosis</h4><p>Possible consderations on plain film includes</p><ul>
~~-<li><a href="/articles/phrenic_nerve_palsy">phrenic nerve palsy</a></li>~~
+<li><a href="/articles/phrenic-nerve-palsy">phrenic nerve palsy</a></li>

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