Median arcuate ligament

Median arcuate ligament
The diaphragm. Under surface.
Details
Identifiers
Latin	ligamentum arcuatum medianum
TA98	A04.4.02.005
TA2	2343
FMA	58281
Anatomical terminology [ edit on Wikidata]

The median arcuate ligament is a ligament under the diaphragm that connects the right and left crura of diaphragm.

Structure

The median arcuate ligament is formed by the right and left crura of the diaphragm. ^[1] The crura connect to form an arch, behind which is the aortic hiatus, through which pass the aorta, the azygos vein, and the thoracic duct.

Variation

In between 10% and 24% of people, the median arcuate ligament occurs very low. ^[2]

Clinical significance

Compression of celiac artery and celiac ganglia by the median arcuate ligament being too low in some individuals; ^[3] this can lead to the median arcuate ligament syndrome, which is characterized by abdominal pain, weight loss, and an epigastric bruit. ^[4]

See also

• Medial arcuate ligament
• Lateral arcuate ligament

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

1. Bayat I, Wang J, Ho P, Bird D (March 2020). "Intravascular ultrasound-guided laparoscopic division of the median arcuate ligament". Journal of Vascular Surgery Cases and Innovative Techniques. 6 (1): 147–151. doi:10.1016/j.jvscit.2020.01.011. PMC   7056607 . PMID   32154471.
2. Surrusco, Matthew S.; Michelotti, Marcos J.; Garberoglio, Carlos A.; Mukherjee, Kaushik (2018-07-27). "A Novel Approach to Median Arcuate Ligament Release Using Robot-Assisted Surgical Techniques and Intraoperative Indocyanine Green Angiography" . Videoscopy. 28 (5). doi:10.1089/vor.2018.0540.
3. Iqbal, S., & Chaudhary, M. (2021). Median arcuate ligament syndrome (Dunbar syndrome). Cardiovascular Diagnosis And Therapy, 11(5), 1172-1176. doi:10.21037/cdt-20-846
4. Duncan AA (April 2008). "Median arcuate ligament syndrome". Current Treatment Options in Cardiovascular Medicine. 10 (2): 112–6. doi:10.1007/s11936-008-0012-2. PMID   18325313. S2CID   1606510. Archived from the original on December 4, 2012.

External links

• Anatomy figure: 40:04-08 at Human Anatomy Online, SUNY Downstate Medical Center - "The abdominal surface of the diaphragm."
• posteriorabdomen at The Anatomy Lesson by Wesley Norman (Georgetown University) ( posteriorabdmus&nerves )