Tentorial angle
Last revised by Francis Deng on 17 Nov 2019
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Citation:
Gaillard F, Deng F, Kang O, et al. Tentorial angle. Reference article, Radiopaedia.org (Accessed on 28 Mar 2024) https://doi.org/10.53347/rID-7891
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7891
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At the time the article was created Frank Gaillard had no recorded disclosures.
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Last revised:
17 Nov 2019,
Francis Deng ◉
Disclosures:
At the time the article was last revised Francis Deng had no recorded disclosures.
View Francis Deng's current disclosures
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- Tentorial angles
The tentorial angle is measured between a line connecting the nasion with the tuberculum sellae and the angle of the straight sinus. Normally it should measure between 27° and 52°.
Abnormalities of the posterior fossa or base of skull can alter this. For example, this angle is elevated in achondroplasia.
References
- 1. Kao SC, Waziri MH, Smith WL et-al. MR imaging of the craniovertebral junction, cranium, and brain in children with achondroplasia. AJR Am J Roentgenol. 1989;153 (3): 565-9. doi:10.2214/ajr.153.3.565 - Pubmed citation