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Segmental anatomy of cerebellar arteries: a proposed nomenclature.
MedLine Citation:
PMID:  21548748     Owner:  NLM     Status:  Publisher    
Object The conceptual division of intracranial arteries into segments provides a better understanding of their courses and a useful working vocabulary. Segmental anatomy of cerebral arteries is commonly cited by a numerical nomenclature, but an analogous nomenclature for cerebellar arteries has not been described. In this report, the microsurgical anatomy of the cerebellar arteries is reviewed, and a numbering system for cerebellar arteries is proposed. Methods Cerebellar arteries were designated by the first letter of the artery's name in lowercase letters, distinguishing them from cerebral arteries with the same first letter of the artery's name. Segmental anatomy was numbered in ascending order from proximal to distal segments. Results The superior cerebellar artery was divided into 4 segments: s(1), anterior pontomesencephalic segment; s(2), lateral pontomesencephalic segment; s(3), cerebellomesencephalic segment; and s(4), cortical segment. The anterior inferior cerebellar artery was divided into 4 segments: a(1), anterior pontine segment; a(2), lateral pontine segment; a(3), flocculopeduncular segment; and a(4), cortical segment. The posterior inferior cerebellar artery was divided into 5 segments: p(1), anterior medullary segment; p(2), lateral medullary segment; p(3), tonsillomedullary segment; p(4), telovelotonsillar segment; and p(5), cortical segment. Conclusions The proposed nomenclature for segmental anatomy of cerebellar artery complements established nomenclature for segmental anatomy of cerebral arteries. This nomenclature is simple, easy to learn, and practical. The nomenclature localizes distal cerebellar artery aneurysms and also localizes an anastomosis or describes a graft's connections to donor and recipient arteries. These applications of the proposed nomenclature with cerebellar arteries mimic the applications of the established nomenclature with cerebral arteries.
Ana Rodríguez-Hernández; Albert L Rhoton; Michael T Lawton
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-6
Journal Detail:
Title:  Journal of neurosurgery     Volume:  -     ISSN:  1933-0693     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0253357     Medline TA:  J Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Neurological Surgery, University of California, San Francisco, California; and.
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