Preauricular groove
Citation, DOI, disclosures and article data
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosuresAt 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- Paraglenoid fossa
- Preauricular sulcus
- Paraglenoid sulcus
- Pre-auricular groove
- Pre-auricular sulcus
The preauricular groove, also known as preauricular sulcus or paraglenoid sulcus, is a normal variant described as characteristic of the bony female pelvis. It is a notch that occurs at the insertion of the anterior sacroiliac ligament 3.
Epidemiology
The preauricular groove is present in ~20% (range 14-25%) of women 1,3 and ~5% of men 1.
Radiographic features
The preauricular groove is in the inferior ilium adjacent to the sacroiliac joint and can vary from a slight concavity to a deep groove with overhanging edges 1-3.
References
- 1. Dee P. The Preauricular Sulcus. Radiology. 1981;140(2):354. doi:10.1148/radiology.140.2.7255707 - Pubmed
- 2. Schemmer D, White P, Friedman L. Radiology of the Paraglenoid Sulcus. Skeletal Radiol. 1995;24(3):205-9. doi:10.1007/bf00228925 - Pubmed
- 3. Yu S & Yu J. Pitfalls in Diagnosis: Skeletal Holes, Clefts, and Notches. Emerg Radiol. 2015;22(5):595-600. doi:10.1007/s10140-015-1319-4 - Pubmed
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