Parietal foramen
Citation, DOI, disclosures and article data
Citation:
Mudgal P, Ashraf A, Bell D, et al. Parietal foramen. Reference article, Radiopaedia.org (Accessed on 13 Mar 2025) https://doi.org/10.53347/rID-28308
rID:
28308
Article created:
20 Mar 2014,
Prashant Mudgal
Disclosures:
At the time the article was created Prashant Mudgal had no recorded disclosures.
View Prashant Mudgal's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Ammar Ashraf had no financial relationships to ineligible companies to disclose.
View Ammar Ashraf's current disclosures
Revisions:
9 times, by
8 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Parietal foramen
The parietal foramina are inconstant foramina on each side of the posterior aspect of the parietal bone near the sagittal suture and represent a normal anatomic variant. They transmit emissary veins, draining to the superior sagittal sinus, and occasionally a branch of the occipital artery. The foramina are variably-present, and often absent 3. When both parietal foramina are present, the point along the sagittal suture that is intersected by an imaginary line connecting the two parietal foramina is called the obelion.
Variant anatomy
-
giant parietal foramina
- may be a benign incidental variant but have been shown to be associated with anomalies, especially venous 1
- present as a pair of large and symmetrical parietal bone lucencies near the lambda 2
References
- 1. Fink AM, Maixner W. Enlarged parietal foramina: MR imaging features in the fetus and neonate. AJNR Am J Neuroradiol. 2006;27 (6): 1379-81. Pubmed citation
- 2. Wilkie AOM, Mavrogiannis LA. Enlarged Parietal Foramina. 2004 Mar 30 [Updated 2012 Nov 8]. In: Pagon RA, Adam MP, Bird TD, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2014. Available from NCBI Bookshelf
- 3. Singh. Textbook of Anatomy with Colour Atlas. Jaypee Brothers Medical Publishers (P) Ltd. ISBN:8180618331. Read it at Google Books - Find it at Amazon
- 4. Currarino G. Normal variants and congenital anomalies in the region of the obelion. AJR Am J Roentgenol. 1976;127 (3): 487-94. doi:10.2214/ajr.127.3.487 - Pubmed citation
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