Document Detail


Riolan's arch: confusing, misnomer, and obsolete. A literature survey of the connection(s) between the superior and inferior mesenteric arteries.
MedLine Citation:
PMID:  17512289     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: There are 2 interpretations of Riolan's arch: (1) Riolan's arch is identical to a central part of the marginal artery (MA), connecting the superior (SMA) and the inferior mesenteric (IMA) arteries; and (2) Riolan's arch represents a rare artery, connecting the SMA and the IMA. The current review aims to emphasize the clinical importance of the colon's vasculature and to show the feasibility of abolishing the terms "Riolan's arch" and "meandering mesenteric artery." METHODS: A literature survey was performed. RESULTS: It appears that no distinct identity can be ascribed to Riolan's arch and that the "meandering mesenteric artery" represents an angiographically hypertrophied MA and/or the ascending branch of the left colic artery. However, a rare, centrally located, communicating artery has been described. Generally, the MA is sufficient for left colic circulation after ligation of the IMA, but at the splenic flexure, patency of the ascending branch of the left colic artery can be primordial. CONCLUSION: As connections between the SMA and the IMA can be adequately described using structures mentioned in Terminologica Anatomica, the terms "Riolan's arch" and "meandering mesenteric artery" should be abolished.
Authors:
Johan F Lange; Niels Komen; Germaine Akkerman; Erik Nout; Herman Horstmanshoff; Frans Schlesinger; Jaap Bonjer; Gerrit-Jan Kleinrensink
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  American journal of surgery     Volume:  193     ISSN:  1879-1883     ISO Abbreviation:  Am. J. Surg.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-21     Completed Date:  2007-07-10     Revised Date:  2009-05-20    
Medline Journal Info:
Nlm Unique ID:  0370473     Medline TA:  Am J Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  742-8     Citation Subset:  AIM; IM    
Affiliation:
Lowlands Institute of Surgical and applied Anatomy, Department of Neurosciences, Faculty of Medicine, Erasmus Medical Centre, Dr. Molewaterplein 50, 3015 GE Rotterdam, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Angiography
Colon / blood supply*
Humans
Mesenteric Artery, Inferior / anatomy & histology*
Mesenteric Artery, Superior / anatomy & histology*

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