Specific Localization of the Lateral Division of the Right Liver in a Male Observed Posteriorly

Description

Posteriorly, the liver’s diaphragmatic surface is oriented toward the viewer, with the right lobe occupying the right upper quadrant and the inferior border sloping anteroinferiorly toward the costal margin. The lateral division of the anatomical right liver is localized lateral to the right hepatic vein and the right portal pedicle, extending out toward the right triangular ligament at the superolateral margin. Medially, the plane toward the right paramedian sector (and the region of the gallbladder fossa on the visceral surface) is implied, even though the posterior aspect emphasizes the bare area and the relationship to the right hemidiaphragm. Clear boundaries matter. Precise posterior localization of the right lateral section is a practical map for hepatic surgery because the posterior aspect aligns with how the liver is mobilized off the diaphragm before parenchymal transection. When planning a right posterior sectionectomy or segmental resection in Couinaud segments VI and VII, surgeons track the course of the right hepatic vein and its short hepatic venous tributaries to the inferior vena cava, a common source of brisk bleeding during posterior dissection. This view also supports teaching the difference between external lobar anatomy and functional, portal-based divisions used in modern hepatectomy and transplant planning. Use this image in hepatobiliary surgery atlases, operative technique chapters on right liver mobilization, and anatomy curricula covering Couinaud segmentation and hepatic venous landmarks. It also fits radiology teaching files when correlating posterior surface anatomy with CT or MRI reconstructions that reference the right hepatic vein as a key plane. Anatomical accuracy verified by SciePro's Medical Advisory Board.