Thin postcentral gyrus sign

Last revised by Francis Deng on 25 Dec 2018

Citation, DOI, disclosures and article data

Citation:

Deng F, Thin postcentral gyrus sign. Reference article, Radiopaedia.org (Accessed on 25 Apr 2024) https://doi.org/10.53347/rID-65141

DOI:

https://doi.org/10.53347/rID-65141

Permalink:

https://radiopaedia.org/articles/65141

rID:

65141

Article created:

25 Dec 2018, Francis Deng ◉

Disclosures:

At the time the article was created Francis Deng had no recorded disclosures.

View Francis Deng's current disclosures

Last revised:

25 Dec 2018, Francis Deng ◉

Disclosures:

At the time the article was last revised Francis Deng had no recorded disclosures.

View Francis Deng's current disclosures

Revisions:

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

Systems:

Central Nervous System

Sections:

Anatomy, Signs

The thin postcentral gyrus sign is an anatomic landmark useful for identifying the central sulcus on cross-sectional imaging.

The anteroposterior dimension of the postcentral gyrus surface is less than that of the precentral gyrus surface, as seen in the axial or sagittal planes. Identifying two parallel gyri of differential thickness helps to localize the central sulcus, which lies between these two gyri.