Trefoil appearance of spinal canal

Last revised by David Luong ◉ on 6 Feb 2022

Citation, DOI, disclosures and article data

Citation:

Weerakkody Y, Luong D, Trefoil appearance of spinal canal. Reference article, Radiopaedia.org (Accessed on 27 Mar 2023) https://doi.org/10.53347/rID-92677

DOI:

https://doi.org/10.53347/rID-92677

Permalink:

https://radiopaedia.org/articles/92677

rID:

92677

Article created:

30 Aug 2021, Yuranga Weerakkody ◉

Disclosures:

At the time the article was created Yuranga Weerakkody had no recorded disclosures.

View Yuranga Weerakkody's current disclosures

Last revised:

6 Feb 2022, David Luong ◉

Disclosures:

At the time the article was last revised David Luong had no recorded disclosures.

View David Luong's current disclosures

Revisions:

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

Systems:

Spine

Synonyms:

Trefoil narrowing of the lateral recess
Clover leaf appearance of spinal canal
Trefoil shape of spinal canal
Trefoil shaped vertebrae
Trefoil shaped vertebra
Trefoil configuration on spinal canal
Trefoil narrowing of the spinal canal
Clover leaf spinal canal appearance

A trefoil appearance of spinal canal (sometimes termed as a cloverleaf spinal canal appearance) is a particular appearance that is of congenital or acquired etiology. This is mainly described in the lumber region and can result in narrowing of the lateral recesess as well as at times involvement of the anteroposterior dimension on the central canal.