The hepatoduodenal ligament is the portion of the lesser omentum extending between the porta hepatis of the liver and the superior part of the duodenum.[citation needed]
Running inside it are the following structures collectively known as the portal triad:[1]
hepatic artery proper
portal vein
common bile duct
Manual compression of the hepatoduodenal ligament during surgery is known as the Pringle manoeuvre.[citation needed]
The cystoduodenal ligament is also found in the lesser omentum and is distinct from both the hepatoduodenal and hepatogastric ligaments. The cystoduodenal ligament is an abnormal peritoneal fold that attaches the duodenum to the gallbladder, representing a rare variation in the anatomy of the lesser sac and its foramen.[2]
Another variation sometimes present at the duodenal termination of the hepatoduodenal ligament is the duodenorenal ligament which passes to the front of the right kidney.[3]
^Anatomy figure: 38:02-06 at Human Anatomy Online, SUNY Downstate Medical Center - "Contents of the hepatoduodenal ligament."
^Ashaolu, J; Ukwenya, V; Adenowo, T (2011). "Cystoduodenal ligament as an abnormal fold and the accompanying anatomical and clinical implications". Surg Radiol Anat. 33 (2): 171–174. doi:10.1007/s00276-010-0736-z. PMID 20976455. S2CID 33094689.
^"Duodenorenal ligament". Retrieved 27 September 2021.
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