Age: Adult Gender: Male From the case: Liver segments (annotated CT - … On MR scar tissue is hypointense on both T1WI and T2WI due to intense fibrotic changes. Illustration of the liver segments based on the Couinaud classification with segment numbers shown in corresponding colors within the illustration. SlideShare utilise les cookies pour améliorer les fonctionnalités et les performances, et également pour vous montrer des publicités pertinentes. Oct 19, 2017 - Liver segments: annotated CT | Radiology Case | Radiopaedia.org
The anatomy of the liver can be described using two different aspects: morphological anatomy and functional anatomy.The Couinaud classification of liver anatomy divides the liver into eight functionally indepedent segments.The illustration above is a schematic presentation of the liver segments.Couinaud divided the liver into a functional left and right liver by a main portal scissurae containing the middle hepatic vein.This figure is a transverse image through the superior liver segments, that are divided by the right and middle hepatic veins and the falciform ligament.This is a transverse image at the level of the left portal vein.This image is at the level of the right portal vein.At the level of the splenic vein, which is below the level of the right portal vein, only the inferior segments are visible.The caudate lobe or segment I is located posteriorly.This CT-image is of a patient with liver cirrhosis with extreme atrophy of the right lobe, normal volume of the left lobe and hypertrophy of the caudate lobe.Many surgeons prefer to use the term "extended" instead of trisectionectomy to indicate that some adjacent tissue of segment 4, or 5/8, as applicable is included rather than the entire segment 4, or 5/8.Here another illustration of the functional segmental liver anatomy. Couniaud divided liver into 8 functional segments, each of which is supplied by it’s own portal triad (composed of a portal vein, hepatic artery and a bile duct).
An example is the central scar of fibrolamellar carcinoma (FLC)
Diagnosis not applicable Diagnosis not applicable .
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Generally, each segment can be conceptualised as wedge-shaped with the apex pointing towards the hepatic hilum (A horizontal plane further divides the liver, known as the portal plane where the The remainder of the segments (II to VIII) are numbered in a clockwise fashion starting superiorly in the left hemiliver:Segment V to VIII make up the right hemiliver and are easier to describe:The division of the liver into self-contained units allows the surgical resection of individual segments and sections without damaging those segments remaining.
Dr Nikolaus Mayr will take … MS van Leeuwen, J Noordzij, MA Fernandez, A Hennipman, MA Feldberg and EH Dillon En clippant ainsi les diapos qui vous intéressent, vous pourrez les revoir plus tard. Hence for the liver to remain viable, resections occur along the hepatic veins and portal veins in the planes that define the boundaries of these segments.Consistent universal nomenclature is has been defined and promoted by the Terminology Committee of the International Hepato-Pancreato-Biliary Association (IHPBA) based on the Brisbane 2000 Terminology meeting Additionally, if resection is performed of a hemiliver plus an additional adjacent section, then further nomenclature is used This anatomic division was first described by the French Surgeon{"containerId":"expandableQuestionsContainer","displayRelatedArticles":true,"displayNextQuestion":true,"displaySkipQuestion":true,"articleId":4474,"mcqUrl":"https://radiopaedia.org/articles/couinaud-classification-of-hepatic-segments/questions/1244?iframe=true\u0026lang=us"}Case 1: prominent papillary process of the caudate ... Radiopaedia is free thanks to our Supporters & Advertisers Become a Gold Supporter, and see no ads.
Hi there! Axial post contrast Annotated Axial CT with contrast of … van Leeuwen MS, Noordzij J, Hennipman A, Feldberg MA. at Cases. It is the preferred anatomy classification system as it divides the liver into eight independent functional units (termed segments) rather than relying on the traditional morphological description based on the external appearance of the liver.
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