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In histology (microscopic anatomy), the lobules of liver, or hepatic lobules, are small divisions of the liver defined at the microscopic scale. The hepatic lobule is a building block of the liver tissue , consisting of portal triads, hepatocytes arranged in linear cords between a capillary network, and a central vein .
It is the distal continuation of the neck of the gallbladder, from where it is directed inferoposteriorly and to the left [2] /medially [4] (this occurs in half of individuals [3]). It typically [ 2 ] terminates by uniting with the common hepatic duct to form the bile duct (usually anterior to the right hepatic artery). [ 2 ]
Liver cirrhosis can lead to increased intrahepatic vascular resistance and vasodilation of portal system arteries, both of which increase pressure in the portal vein. [4] Color Doppler Ultrasound is the most useful imaging tool used to identify aneurysms, thrombosis, and branching patterns of the portal venous system, and to determine if ...
The quadrate lobe is an area of the liver situated on the undersurface of the medial segment left lobe (Couinaud segment IVb), bounded in front by the anterior margin of the liver, behind by the porta hepatis, on the right by the fossa for the gall-bladder, and on the left by the fossa for the umbilical vein.
The right vertical limb of the "H" defines the left and right functional lobes, while the left vertical limb of the "H" defines the right and left anatomical lobes. The horizontal line between the vertical limbs of the "H" represents the porta hepatis. The quadrate and caudate lobe lie superior and inferior to this line respectively.
The first symptoms typically include fever, intermittent abdominal pain, and an enlarged liver.Occasionally, yellow discoloration of the skin occurs. [4] Caroli disease usually occurs in the presence of other diseases, such as autosomal recessive polycystic kidney disease, cholangitis, gallstones, biliary abscess, sepsis, liver cirrhosis, kidney failure, and cholangiocarcinoma (7% affected). [2]
The most common kinds of cysts are epidermoid cysts, which form beneath the skin and are small, harmless bumps most commonly found on the face, neck, or trunk, according to the Mayo Clinic.
It is formed by the union of the right hepatic duct (which drains bile from the right functional lobe of the liver) and the left hepatic duct (which drains bile from the left functional lobe of the liver). [3] The duct is about 3 cm long. [4] The common hepatic duct is about 6 mm in diameter in adults, with some variation. [5]