Marginal artery of Drummond
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At the time the article was created Donna D'Souza had no recorded disclosures.
View Donna D'Souza's current disclosuresAt the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures- Marginal artery of the colon
The marginal artery of Drummond, also known as the marginal artery of the colon, is a continuous arterial circle or arcade along the inner border of the colon formed by the anastomoses of the terminal branches of the superior mesenteric artery (SMA) and inferior mesenteric artery (IMA).
On this page:
Gross anatomy
-
superior mesenteric artery (SMA)
- ileocolic artery: colic branch
- right colic artery: ascending and descending branches
- middle colic artery: right and left branches
-
inferior mesenteric artery (IMA)
- left colic artery: ascending and descending branches
- sigmoid arteries: unnamed terminal branches
Straight vessels (known as vasa recta) pass from this marginal artery to the colon.
The marginal artery is an important connection between the SMA and IMA providing collateral flow in the event of occlusion or significant stenosis.
The junction of the SMA and IMA territories is at the splenic flexure. Anastomoses here are often weak or absent, hence the marginal artery at this point (known as Griffiths point) is often focally small or discontinuous. For this reason, the splenic flexure is a watershed (border zone) area prone to ischemia and infarction.
The other important connection between the SMA and IMA (though only variably present) is the mesenteric meandering artery (arc of Riolan).
History and etymology
The marginal artery of Drummond is named after British pathologist and anatomist Sir David Drummond (1852–1932) who found that even though the three main colic arteries were surgically tied off, contrast medium injected into the ileocolic artery still passed to the sigmoidal branches 4,5.
See also
References
- 1. Sinnatamby CS, Last RJ. Last's anatomy, regional and applied. Churchill Livingstone. (2006) ISBN:0443100330. Read it at Google Books - Find it at Amazon
- 2. Kaufman JA, Lee MJ. Vascular & interventional radiology. Mosby Inc. (2004) ISBN:0815143699. Read it at Google Books - Find it at Amazon
- 3. Meyers MA. Griffiths' point: critical anastomosis at the splenic flexure. Significance in ischemia of the colon. AJR Am J Roentgenol. 1976;126 (1): 77-94. AJR Am J Roentgenol (abstract) - Pubmed citation
- 4. DiPoce J, Jimenez G, Weintraub J. Historical perspective: eponyms of vascular radiology. (2014) Radiographics : a review publication of the Radiological Society of North America, Inc. 34 (4): 1120-40. doi:10.1148/rg.344130125 - Pubmed
- 5. Charles J. Yeo. Shackelford's Surgery of the Alimentary Tract, E-Book. (2017) ISBN: 9780323531771
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