Document Detail

Scalp to meningeal arterial anastomosis in the parietal foramen.
MedLine Citation:
PMID:  16543869     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The purpose of this study was to examine the parietal foramen and to determine whether it is the site of an anastomosis between the meningeal and scalp arteries. METHODS: Forty parietal regions from 20 adult cadavers, in which the arteries were perfused with colored latex, were examined for this study. The scalp was separated from the parietal foramen, and the vasculature in the foramen and adjacent scalp and dura were examined using x3 magnification. The scalp arteries that anastomosed with the meningeal arteries through the parietal foramen were followed into the dura after craniotomy. RESULTS: Parietal foramen was found in 20 of the 40 (50%) parietal regions. They were present bilaterally in eight heads and unilaterally in four. Every parietal foramen transmitted an anastomosis between the middle meningeal and scalp arteries. In 11 (55%) of the 20 foramina found in this study, the superficial temporal and occipital artery formed an anastomosis in the galea and pericranial layer that sent a branch through the parietal foramen to anastomose with parietal branches of the middle meningeal artery. In the remaining nine (45%) sides, the middle meningeal artery had a connection through the foramen with a small pericranial artery. CONCLUSION: Every parietal foramen was the site of a connection between the middle meningeal and scalp arteries. The scalp end of the anastomosis most commonly arose in an anastomosis between the superficial temporal and occipital arteries. This anastomosis may be involved in several pathologies.
Nobutaka Yoshioka; Albert L Rhoton; Hiroshi Abe
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  58     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-03-17     Completed Date:  2006-05-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  ONS123-6; discussion ONS123-6     Citation Subset:  IM    
Department of Neurosurgery, University of Florida, Gainesville, Florida 32610-0265, USA.
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MeSH Terms
Arteriovenous Anastomosis / anatomy & histology*
Latex / diagnostic use
Meningeal Arteries / anatomy & histology*
Parietal Bone / anatomy & histology*
Scalp / anatomy & histology*
Reg. No./Substance:

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