Lower T sign (central sulcus)

Last revised by Craig Hacking on 10 Jul 2019

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Hacking C, Murphy A, Lower T sign (central sulcus). Reference article, Radiopaedia.org (Accessed on 24 Apr 2024) https://doi.org/10.53347/rID-49411

DOI:

https://doi.org/10.53347/rID-49411

Permalink:

https://radiopaedia.org/articles/49411?iframe=true

rID:

49411

Article created:

23 Nov 2016, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

10 Jul 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:

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

Systems:

Central Nervous System

Sections:

Anatomy, Signs

The lower T sign is one of the features useful in identifying the central sulcus on cross-sectional imaging.

It relies on identifying the inferior frontal sulcus which intersects the precentral sulcus in a "T" junction, thus defining the precentral gyrus. The central sulcus is the next posterior sulcus.

It should be distinguished from the upper T sign which is the confluence of the superior frontal sulcus with the precentral sulcus.

Lower T sign (central sulcus)

Citation, DOI, disclosures and article data

See also

References

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