Flat tyre sign (globe rupture)

Last revised by Mostafa Elfeky on 19 Feb 2024

Citation, DOI, disclosures and article data

Citation:

Amer M, Elfeky M, Sharma R, Flat tyre sign (globe rupture). Reference article, Radiopaedia.org (Accessed on 28 Apr 2024) https://doi.org/10.53347/rID-184354

DOI:

https://doi.org/10.53347/rID-184354

Permalink:

https://radiopaedia.org/articles/184354

rID:

184354

Article created:

18 Feb 2024, Mohammad Salem Amer

Disclosures:

At the time the article was created Mohammad Salem Amer had no financial relationships to ineligible companies to disclose.

View Mohammad Salem Amer's current disclosures

Last revised:

19 Feb 2024, Mostafa Elfeky ◉

Disclosures:

At the time the article was last revised Mostafa Elfeky had no financial relationships to ineligible companies to disclose.

View Mostafa Elfeky's current disclosures

Revisions:

6 times, by 3 contributors - see full revision history and disclosures

Systems:

Trauma, Head & Neck

Sections:

Signs

Tags:

cases2

Synonyms:

Mushroom sign (globe rupture)

The flat tyre sign, also known as the mushroom sign, is one of the most specific signs of ruptured eye globe, due to the similarity between the abnormal contour of injured globe and the appearance of a flat tyre ¹. It is classically described on CT but may be seen on ultrasound or MRI ².

The most specific CT signs for globe injuries are abnormal globe contour and vitreous hemorrhage ^1,3. Intra-ocular air and presence of foreign bodies are good predictors for globe injuries if associated with other features in patients with ocular trauma ^1,2.