Double diaphragm sign
Disclosures
- updated 21 May 2023:
- Annalise AI, Sponsored discussion at Radiopaedia 2021 (past)
Updates to Article Attributes
Body
was changed:
The double diaphragm sign is one of several radiological signs seen with a pneumothorax in a supine patient.
Supine films are commonly performed in unwell patients, particularly in the ICU. In a supine patient with a pneumothorax, air may outline the anterior portions of the hemidiaphragm and cause visualizationvisualisation of the anterior costophrenic sulcus.
When both the diaphragmatic dome and anterior portions of the diaphragm are visualizedvisualised (being outlined by lung and pleural air respectively) the double diaphragm sign is produced.
It should not be confused with the continuous diaphragm sign.
See also
-<p>The <strong>double diaphragm sign</strong> is one of several radiological signs seen with a <a href="/articles/pneumothorax-in-supine-projection">pneumothorax in a supine patient</a>.</p><p>Supine films are commonly performed in unwell patients, particularly in the ICU. In a supine patient with a <a href="/articles/pneumothorax">pneumothorax</a>, air may outline the anterior portions of the <a href="/articles/hemidiaphragm">hemidiaphragm</a> and cause visualization of the anterior costophrenic sulcus. </p><p>When both the diaphragmatic dome and anterior portions of the diaphragm are visualized (being outlined by lung and pleural air respectively) the double diaphragm sign is produced. </p><p>It should not be confused with the <a title="Continuous diaphragm sign" href="/articles/continuous-diaphragm-sign">continuous diaphragm sign</a>.</p><h4>See also</h4><ul><li><a href="/articles/pneumothorax-in-supine-patient-2">pneumothorax in supine patient</a></li></ul>- +<p>The <strong>double diaphragm sign</strong> is one of several radiological signs seen with a <a href="/articles/pneumothorax-in-supine-projection">pneumothorax in a supine patient</a>.</p><p>Supine films are commonly performed in unwell patients, particularly in the ICU. In a supine patient with a <a href="/articles/pneumothorax">pneumothorax</a>, air may outline the anterior portions of the <a href="/articles/hemidiaphragm">hemidiaphragm</a> and cause visualisation of the anterior costophrenic sulcus. </p><p>When both the diaphragmatic dome and anterior portions of the diaphragm are visualised (being outlined by lung and pleural air respectively) the double diaphragm sign is produced. </p><p>It should not be confused with the <a title="Continuous diaphragm sign" href="/articles/continuous-diaphragm-sign">continuous diaphragm sign</a>.</p><h4>See also</h4><ul><li><a href="/articles/pneumothorax-in-supine-projection">pneumothorax in supine patient</a></li></ul>
Images Changes:
Image 1 X-ray (Frontal) ( create )
Caption
was added:
Case 1: left
Position
was set to
1.
Unable to process the form. Check for errors and try again.