Notch for Ligamentum Teres in the Male Liver, Anterior View

Description

Anterior hepatic anatomy is presented with emphasis on the inferior border (margo inferior hepatis) where a distinct notch accommodates the ligamentum teres hepatis. The round ligament tracks superiorly within the umbilical fissure (fissura ligamenti teretis), marking the division between the left medial and left lateral segments on the visceral surface. Superior to this region, the convex diaphragmatic surface of the right and left lobes forms the dominant contour, while the falciform ligament attachment aligns toward the anterior surface and the umbilical portion of the left portal vein deep to the fissure. Recognition of the notch for ligamentum teres matters because it is a dependable surface landmark for orienting the liver during open or laparoscopic exploration when the visceral surface is only partially visualized. The ligamentum teres represents the fibrotic remnant of the fetal left umbilical vein and can recanalize in portal hypertension, becoming a prominent paraumbilical collateral that courses toward the anterior abdominal wall (caput medusae). Small but telling. In segmental (Couinaud) teaching, the fissure for ligamentum teres helps distinguish left-sided segments and guides safe parenchymal transection lines during left hepatectomy planning. Use this anterior view in gross anatomy dissection guides to teach hepatic surface landmarks, in radiology correlation handouts when explaining the umbilical fissure on CT or ultrasound, and in hepatobiliary surgery materials that reference the falciform ligament and round ligament as orientation cues during cholecystectomy or liver mobilization. It also fits well in embryology modules linking fetal umbilical circulation to adult hepatic remnants. Anatomical accuracy verified by SciePro's Medical Advisory Board.