Sigmoidal hook sign (brain)
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Knipe H, Qureshi P, et al. Sigmoidal hook sign (brain). Reference article, Radiopaedia.org (Accessed on 06 Mar 2025) https://doi.org/10.53347/rID-33980
Permalink:
rID:
33980
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Henry Knipe had the following disclosures:
- Micro-X Ltd, Shareholder (past)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Henry Knipe's current disclosures
Revisions:
6 times, by
6 contributors -
see full revision history and disclosures
Systems:
Sections:
Tags:
Synonyms:
- Sigmoid hook sign
- Sigmoidal hook sign (brain)
Sigmoidal hook sign or omega sign is a term sometimes used to denote the appearance of the hand motor area (hand knob), projecting posteriorly from the precentral gyrus. This is a helpful feature in identifying the central sulcus.
The term is however not terribly well known and is therefore probably not very helpful, and is probably best avoided.
References
- 1. Handbook of Neurosurgery and Neurology in Pediatrics. (2006) ISBN: 0978850203 - Google Books
- 2. Thapa B & Benjankar R. Assessment of Direct Signs of Localization of Central Sulcus in Normal Axial Computed Tomography Scan of Brain. J Nepal Health Res Counc. 2022;20(2):441-6. doi:10.33314/jnhrc.v20i02.4091 - Pubmed
Incoming Links
Articles:
Unable to process the form. Check for errors and try again.