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Sharp mediastinum sign

Last revised by Henry Knipe ◉ on 15 Nov 2022

Citation, DOI, disclosures and article data

Citation:

Liu A, Knipe H, Sharp mediastinum sign. Reference article, Radiopaedia.org (Accessed on 08 Dec 2024) https://doi.org/10.53347/rID-156385

DOI:

https://doi.org/10.53347/rID-156385

Permalink:

https://radiopaedia.org/articles/156385

rID:

156385

Article created:

15 Nov 2022, Anthony Liu

Disclosures:

At the time the article was created Anthony Liu had no financial relationships to ineligible companies to disclose.

View Anthony Liu's current disclosures

Last revised:

15 Nov 2022, Henry Knipe ◉

Disclosures:

At the time the article was last revised Henry Knipe had the following disclosures:

Radiopaedia Events Pty Ltd, Speaker fees (past)
Integral Diagnostics, Shareholder (ongoing)
Micro-X Ltd, Shareholder (ongoing)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Henry Knipe's current disclosures

Revisions:

2 times, by 2 contributors - see full revision history and disclosures

Systems:

Chest, Paediatrics

Sections:

Signs

Tags:

cases, case2, refs, snippet

The sharp mediastinum sign is a unique sign in neonatal chest x-rays for medial pneumothoraces or pneumomediastinum, especially as a complication to mechanical ventilation for respiratory distress syndrome (RDS).

Radiographic features

Plain radiograph

As neonatal chest x-rays are taken with the neonate/infant supine, the air in the pleural space rises to paramediastinal locations, and the air creates a sharp contour around mediastinal structures ¹.

References

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