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The periportal zone I is nearest to the entering vascular supply and receives the most oxygenated blood, making it least sensitive to ischemic injury while making it very susceptible to viral hepatitis. Conversely, the centrilobular zone III has the poorest oxygenation, and will be most affected during a time of ischemia. [5]
Centrilobular necrosis (CN) is a nonspecific histopathological observation brought on by hepatotoxins like acetaminophen (paracetamol), [1] thioacetamide, tetrachloride, [2] cardiac hepatopathy due to acute right sided cardiac failure, and congestive hepatic injury in veno-occlusive disease, [3] or hypoxic injury due to ischemia. [2]
Ischemic hepatitis, also known as shock liver, is a condition defined as an acute liver injury caused by insufficient blood flow (and consequently insufficient oxygen delivery) to the liver. [5] The decreased blood flow ( perfusion ) to the liver is usually due to shock or low blood pressure.
Primary liver cancer is globally the sixth-most frequent cancer and the fourth-leading cause of death from cancer. [7] [10] In 2018, it occurred in 841,000 people and resulted in 782,000 deaths globally. [7] Higher rates of liver cancer occur where hepatitis B and C are common, including Asia and sub-Saharan Africa. [3]
The cause of liver hemangiomas remains unknown; however, it may have congenital and genetic components. [5] They are not known to become malignant based on the available existing literature. [5] Liver hemangiomas do not usually cause symptoms. [2] [5] They are usually small, with sizes up to 10 centimeters. [5] Their size tends to remain stable ...
The latter is an FDA-approved treatment for primary liver cancer which has been shown in clinical trials to increase the survival rate of low-risk patients. SIR-Spheres are FDA-approved for the treatment of metastatic colorectal cancer , but outside the US, SIR-Spheres are approved for the treatment of any nonresectable liver cancer including ...
A liver metastasis is a malignant tumor in the liver that has spread from another organ that is affected by cancer. The liver is a common site for metastatic disease because of its rich, dual blood supply (the liver receives blood via the hepatic artery and portal vein). Metastatic tumors in the liver are 20 times more common than primary liver ...
In the majority of acute liver failure (ALF) there is widespread hepatocellular necrosis beginning in the centrizonal distribution and progressing towards portal tracts. The degree of parenchymal inflammation is variable and is proportional to duration of disease. [7] [20] [21] Zone 1 (periportal) occurs in phosphorus poisoning or eclampsia.