Preauricular groove
Last revised by Jakob Neubauer on 23 Jun 2021
Citation, DOI, disclosures and article data
Citation:
Knipe H, Neubauer J, Weerakkody Y, Preauricular groove. Reference article, Radiopaedia.org (Accessed on 19 Mar 2024) https://doi.org/10.53347/rID-44083
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rID:
44083
Article created:
Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
23 Jun 2021,
Jakob Neubauer
Disclosures:
At the time the article was last revised Jakob Neubauer had no recorded disclosures.
View Jakob Neubauer's current disclosures
Revisions:
3 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Preauricular sulcus
- Paraglenoid sulcus
- Pre-auricular groove
- Pre-auricular sulcus
The preauricular groove/ sulcus or paraglenoid sulcus is a normal variant that is described to be characteristic of the bony female pelvis. It occurs at the insertion of the anterior sacroiliac ligament.
Epidemiology
The preauricular groove is present in ~25% of women and ~5% of men 1.
Radiographic features
The preauricular groove is in the inferior ilium adjacent to the sacro-iliac joint, and can vary from slightly concavity to a deep groove with overhanging edges 1,2.
References
- 1. Dee PM. The preauricular sulcus. Radiology. 1981;140 (2): 354. doi:10.1148/radiology.140.2.7255707 - Pubmed citation
- 2. Schemmer D, White P, Friedman L. Skeletal Radiology. 1995;24 (3): . doi:10.1007/BF00228925
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