Related Experiment Video
Updated: Aug 17, 2026
04:41
Application of the En Bloc Concept Combined with Anatomic Resection in Laparoscopic Hepatectomy
Published on: March 10, 2023
Sonographic demonstration of Couinaud's liver segments
1Department of Diagnostic Radiology and Nuclear Medicine, London Health Sciences Centre, University Campus, University of Western Ontario, Canada.
Abstract:
The segmental localization of liver tumors is critical to planning appropriate resection. Couinaud's nomenclature is a surgically relevant system of hepatic segmental anatomy, which defines the liver segments by their relationships to vascular structures, hepatic ligaments, and the gallbladder. We demonstrate a way to accurately localize hepatic masses with sonography.
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The liver, the largest gland within the human body, is a firm and reddish-brown organ. This wedge-shaped structure weighs approximately 1.5 kg and occupies a significant portion of the right hypochondriac and epigastric regions. It extends more to the right of the body's midline than to the left.
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
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