Lateral Observation of the Right Portal Fissure of the Male Liver

Description

Viewed laterally on the right, the liver’s visceral surface is oriented to emphasize the right portal fissure (fissura portalis dextra) as a deep groove within the right hepatic lobe. The fissure lies medial to the right lateral parenchyma and relates to the segmental division between the anterior (segments V and VIII) and posterior sectors (segments VI and VII) in Couinaud anatomy, with the porta hepatis positioned anteromedially and inferior to the dome of the right hemidiaphragm. Superiorly, the convex diaphragmatic surface arcs toward the hepatic veins, while the inferior margin sweeps anterior to the right colic flexure and adjacent visceral impressions. A clean landmark. Recognizing the right portal fissure matters when you map segmental anatomy for hepatobiliary surgery and interventional radiology. It aligns with the course of right portal pedicles and helps distinguish sectoral planes that guide anatomic hepatectomy, portal vein embolization planning, and targeted ablation margins when lesions sit near the anterior and posterior sector boundary. Surgeons often correlate this surface feature with intraoperative ultrasound findings because tumors rarely respect external lobar contours, but they often relate predictably to portal inflow territories. Use this lateral male liver illustration in gross anatomy and surgical anatomy curricula when teaching Couinaud segmentation, portal triad orientation at the porta hepatis, and surface landmarks used in operative reports. It also fits hepatology and radiology publications that need a clear external correlate for right portal fissure terminology (fissura portalis dextra) without crowding the field with unrelated structures. Anatomical accuracy verified by SciePro's Medical Advisory Board.