What causes enlarged of caudate lobe of liver?
Causes of an enlarged caudate lobe (caudate lobe hypertrophy) include the following: Cirrhosis. Hepatic venous occlusion in which venous drainage from the caudate lobe to the IVC is maintained by emissary veins. Focal mass lesions within the caudate lobe.
What does the caudate lobe do?
The caudate lobe (segment I) is the autonomous zone of the liver. It receives portal venous, as well as hepatic arterial, blood from both branches of the aforementioned vessels. Additionally, its biliary drainage is by both branches of the hepatic ducts and its venous return goes directly into the inferior vena cava.
How is caudate lobe measured CT?
Method for measuring
- image: axial slice immediately below the bifurcation of the main portal vein.
- line 1: a parasagittal line drawn through the right lateral border of the portal vein.
- line 2: a parasagittal line drawn through the left lateral border of the caudate lobe.
What is significant about the caudate lobe of the liver?
The caudate lobe represents the only part of the liver that is in contact with the vena cava, except at the entrance of the main hepatic veins into the vena cava, and provides an anastomosis between the hepatic veins and vena cava.
What vein drains the caudate lobe?
The right hepatic vein drains the segments VI and VII, and occasionally parts of segments V and VIII. The vein terminates by draining into the inferior vena cava near the upper border of the caudate lobe of the liver, just below the central tendon of the diaphragm.
Where does caudate lobe drain into?
inferior vena cava
Veins of the caudate lobe When present, they drain the segment I of the liver that corresponds to the caudate lobe. The veins of the caudate lobe terminate by draining directly into the inferior vena cava.
What is caudate lobe of the fish liver?
Definition of the caudate lobe by other researchers The tip of the right caudate lobe extends the phrenic surface of the liver between the middle and right hepatic veins. The caudate process is the protruding portion of the liver caudal to the right portal vein.
What is the caudate process?
Description. The caudate process is a small elevation of the hepatic substance extending obliquely lateralward, from the lower extremity of the caudate lobe to the under surface of the right lobe.
Where is the caudate lobe of liver?
The caudate lobe (segment I) lies in the lesser sac on the inferior surface of the liver between the IVC on the right, the ligamentum venosum on the left, and the porta hepatis in front (see the image below).
What is the caudate lobe of the liver?
The caudate lobe or segment I is located posteriorly. The caudate lobe is anatomically different from other lobes in that it often has direct connections to the IVC through hepatic veins, that are separate from the main hepatic veins. The caudate lobe may be supplied by both right and left branches of the portal vein.
What is caudate right lobe ratio?
Caudate–right lobe ratio. Caudate-right lobe ratio (C/RL) is used in the assessment of livers, usually in the setting of cirrhosis, in which there is atrophy of the right lobe with hypertrophy of the caudate lobe .
What is hypertrophy of the caudate lobe?
Hypertrophy of the caudate lobe is seen in a number of conditions, including: The caudate-right lobe ratio may be useful in quantifying caudate hypertrophy. A ratio of greater than 0.65 indicates a high likelihood of cirrhosis. 1.
What is the caudate-right lobe ratio of cirrhosis?
The caudate-right lobe ratio may be useful in quantifying caudate hypertrophy. A ratio of greater than 0.65 indicates a high likelihood of cirrhosis. 1. Vilgrain Valérie, Bertrand Condat, Christophe Bureau et al. “Atrophy-Hypertrophy Complex in Patients with Cavernous Transformation of the Portal Vein: CT Evaluation1.”