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Cavernous hemangiomas (also called hepatic hemangioma or liver hemangioma) are the most common type of benign liver tumor, found in 3%– 10% of people. [2] They are made up of blood clusters that are surrounded by endothelial cells. [5] These hemangiomas get their blood supply from the hepatic artery and its branches. [5]
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 to the liver is usually due to shock or low blood pressure. However, local causes involving the hepatic artery that supplies ...
If the cause of obstruction is suspected to be malignant, endoscopic retrograde cholangiopancreatography (ERCP), ultrasound, CT, MRI and magnetic resonance cholangiopancreatography (MRCP) are used. [52] Tumor markers, chemicals sometimes found in the blood of people with cancer, can be helpful in diagnosing and monitoring the course of liver ...
Optimally, these scans are performed with intravenous contrast in multiple phases of hepatic perfusion to improve detection and accurate classification of any liver lesions. Due to the characteristic blood flow pattern of HCC tumors, a specific perfusion pattern of any detected liver lesion may conclusively detect an HCC tumor.
Several hypotheses are given, such as it arises from sinusoidal epithelial damage, [13] increased sinusoidal pressure due to obstruction in blood outflow from the liver, or hepatocellular necrosis. [1] Peliosis hepatis is associated with infections, cancers, organ transplantation, blood disorders, autoimmune conditions, and certain medications. [6]
[47] [48] Alcohol-related liver disease accounts for about 4.5% of liver-related deaths globally, underscoring the substantial burden of alcohol misuse. [49] Viral hepatitis, primarily hepatitis B and hepatitis C, remains a leading cause of liver cirrhosis and liver cancer worldwide, despite advances in antiviral therapies and vaccination ...
Macroscopically, the liver has a pale and spotty appearance in affected areas, as stasis of the blood causes pericentral hepatocytes (liver cells surrounding the central venule of the liver) to become deoxygenated compared to the relatively better-oxygenated periportal hepatocytes adjacent to the hepatic arterioles.
A large pyogenic liver abscess presumed to be the result of appendicitis. There are several major forms of liver abscess, classified by cause: [3] Pyogenic liver abscess, which is most often polymicrobial, accounts for 80% of hepatic abscess cases in the United States. Amoebic liver abscess due to Entamoeba histolytica accounts for 10% of cases ...