Lunate trachea

Last revised by Craig Hacking on 3 Sep 2019

Citation, DOI, disclosures and article data

Citation:

Hacking C, Lunate trachea. Reference article, Radiopaedia.org (Accessed on 09 May 2024) https://doi.org/10.53347/rID-70722

DOI:

https://doi.org/10.53347/rID-70722

Permalink:

https://radiopaedia.org/articles/70722

rID:

70722

Article created:

2 Sep 2019, Craig Hacking ◉

Disclosures:

At the time the article was created Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Last revised:

3 Sep 2019, Craig Hacking ◉

Disclosures:

At the time the article was last revised Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Revisions:

1 time, by 1 contributor - see full revision history and disclosures

Systems:

Chest

Sections:

Anatomy

Lunate trachea is a rare variant of the trachea in inspiration where the trachea has a flattened shape said to resemble a crescent or moon. Normally the tracheal index (ratio of coronal to sagittal diameter) is less than 1, but with lunate trachea the ratio is greater than 1 ^{1, 2}.

It is a very specific but poorly sensitive sign of tracheomalacia ^{1, 3}.