「 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.
Running inside it are the following structures collectively known as the portal triad :[1]
Manual compression of the hepatoduodenal ligament during surgery is known as the Pringle Maneuver. The hepatoduodenal ligament should not be confused with the cystoduodenal ligament. The cystoduodenal ligament is also found in the lesser omentum and is distinct from the hepatoduodenal and hepatogastric ligaments. It represents a variation in the anatomy of the omental bursa and its foramen[2] 」