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Definition
 
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Echinococcosis, Hepatic definition: Liver disease caused by infections with parasitic tapeworms of the genus ECHINOCOCCUS, such as Echinococcus granulosus or Echinococcus multilocularis. Ingested Echinococcus ova burrow into the intestinal mucosa. The larval migration to the liver via the PORTAL VEIN leads to watery vesicles (HYDATID CYST).
Hepatic Artery definition: A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.
Hepatic Duct, Common definition: Predominantly extrahepatic bile duct which is formed by the junction of the right and left hepatic ducts, which are predominantly intrahepatic, and, in turn, joins the cystic duct to form the common bile duct.
Hepatic Encephalopathy definition: A syndrome characterized by central nervous system dysfunction in association with LIVER FAILURE, including portal-systemic shunts. Clinical features include lethargy and CONFUSION (frequently progressing to COMA); ASTERIXIS; NYSTAGMUS, PATHOLOGIC; brisk oculovestibular reflexes; decorticate and decerebrate posturing; MUSCLE SPASTICITY; and bilateral extensor plantar reflexes (see REFLEX, BABINSKI). ELECTROENCEPHALOGRAPHY may demonstrate triphasic waves. (From Adams et al., Principles of Neurology, 6th ed, pp1117-20; Plum & Posner, Diagnosis of Stupor and Coma, 3rd ed, p222-5)
Hepatic Encephalopathy definition: A constellation of signs and symptoms characterized by changes in personality, consciousness, and reflexes, resulting from neuropsychiatric abnormalities secondary to liver failure without evidence of other brain disease.
hepatic coma/encephalopathy definition: syndrome characterized by central nervous system dysfunction in association with liver failure, including portal-systemic shunts; clinical features include lethargy and confusion, frequently progressing to coma, asterixis, nystagmus, brisk oculovestibular reflexes, decorticate and decerebrate posturing, muscle spasticity, and bilateral extensor plantar reflexes.
Hepatomegaly definition: Enlargement of the liver.
Hepatomegaly definition: Abnormal enlargement of the liver.
Liver Abscess definition: Solitary or multiple collections of PUS within the liver as a result of infection by bacteria, protozoa, or other agents.
liver abscess definition: solitary or multiple collections of pus within the liver; usually associated with systemic manifestations of toxemia and clinical signs of disease in the right upper quadrant of the abdomen.
Liver Abscess, Amebic definition: Single or multiple areas of PUS due to infection by any ameboid protozoa (AMEBIASIS). A common form is caused by the ingestion of ENTAMOEBA HISTOLYTICA.
Liver Circulation definition: The circulation of BLOOD through the LIVER.
liver circulation definition: vessels, supply, and flow of blood through the vascular system of the kidneys.
Liver Cirrhosis definition: Liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules.
liver cirrhosis definition: liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules.
cirrhosis definition: A type of chronic, progressive liver disease in which liver cells are replaced by scar tissue.
Liver Diseases definition: Pathological processes of the LIVER.
liver disorder definition: impairment of health or a condition of abnormal functioning of the liver.
Hepatic Disorder definition: Any disease or dysfunction of the liver and the intrahepatic bile ducts.
Liver Glycogen definition: Glycogen stored in the liver. (Dorland, 28th ed)
Liver Neoplasms definition: Tumors or cancer of the LIVER.
liver neoplasm definition: new abnormal liver tissue that grows by excessive cellular division and proliferation more rapidly than normal and continues to grow after the stimuli that initiated the new growth cease; do not confuse with intrahepatic neoplasm as that may refer to bile duct neoplasm (BILIARY TRACT NEOPLASM).
Liver Failure definition: Severe inability of the LIVER to perform its normal metabolic functions, as evidenced by severe JAUNDICE and abnormal serum levels of AMMONIA; BILIRUBIN; ALKALINE PHOSPHATASE; ASPARTATE AMINOTRANSFERASE; LACTATE DEHYDROGENASES; and albumin/globulin ratio. (Blakiston's Gould Medical Dictionary, 4th ed)
liver failure definition: severe inability of the liver to function normally, as evidenced by severe jaundice and abnormal levels of ammonia, bilirubin, alkaline phosphatase, glutamic oxaloacetic transaminase, lactic dehydrogenase, and reversal of the albumin/globulin ratio.
Hepatic Failure definition: The inability of the liver to metabolize chemicals in the body. Causes include cirrhosis and drug-induced hepatotoxicity. Signs and symptoms include jaundice and encephalopathy. Laboratory test results reveal abnormal plasma levels of ammonia, bilirubin, lactic dehydrogenase, and alkaline phosphatase.
hepatic definition: Refers to the liver.
HEPATIC definition: Pertaining to, affecting, or associated with the liver. (NCI)
Hepatic definition: Pertaining to, affecting, or associated with the liver.
Portal definition: Of or pertaining to a porta, especially the porta of the liver; as, the portal vein, which enters the liver at the porta, and divides into capillaries after the manner of an artery. Portal is applied to other veins which break up into capillaries; as, the renal portal veins in the frog.
Ascending colon definition: Organ part which is continuous with the cecum proximally and the transverse colon distally.
Colon, Ascending definition: The segment of LARGE INTESTINE between the CECUM and the TRANSVERSE COLON. It passes cephalad from the cecum to the caudal surface of the right lobe of the LIVER where it bends sharply to the left, forming the right colic flexure.
Ascending Colon definition: The first part of the colon (large intestine) that starts in the right lower quadrant of the abdomen and ends at the transverse colon in the right upper quadrant of the abdomen.
Hepatic Flexure definition: The bend of the colon at the juncture of its ascending and transverse portions.
Perivascular fibrous sheath of liver definition: Organ component of the liver, which consists of irregular dense connective tissue sheath which surrounds each portal triad.
Perivascular fibrous sheath of liver definition: Organ component of the liver, which consists of irregular dense connective tissue sheath which surrounds each portal triad.
Liver Acinus definition: The smallest functional unit of the liver, comprising all of the liver parenchyma supplied by a terminal branch of the portal vein and hepatic artery; typically involves segments of two lobules lying between two terminal hepatic venules.
hepatocyte definition: (HEP-a-toe-site) A liver cell.
liver cell definition: cells of the liver including hepatocytes, the polyhedral epithelial cells that constitute the substance of an acinus of the liver.
Hepatocytes definition: The main structural component of the LIVER. They are specialized EPITHELIAL CELLS that are organized into interconnected plates called lobules.
Hepatocyte definition: A parenchymal liver cell.
Hepatic Hemorrhage definition: Bleeding originating from the liver.
Hepatic Hemangioma definition: A hemangioma arising from the liver.
liver cancer definition: A disease in which malignant (cancer) cells are found in the tissues of the liver.
Liver and Intrahepatic Biliary Tract Carcinoma definition: A carcinoma arising from the liver or intrahepatic bile duct. The main subtypes are hepatocellular carcinoma (hepatoma) and cholangiocarcinoma.
Hepatic Angiosarcoma definition: A malignant vascular neoplasm arising from the liver.
LIVER FISSURE definition: The transverse fissure on the visceral surface of the liver where the portal vein and hepatic artery enter and the hepatic ducts leave. (NCI)
Liver Fissure definition: The transverse fissure on the visceral surface of the liver where the portal vein and hepatic artery enter and the hepatic ducts leave.
liver infection definition: invasion and multiplication of microorganisms or parasites in the liver which may or may not be clinically apparent.
Hepatic Infection definition: An acute or chronic infectious process affecting the liver.
Hepatic Angiomyolipoma definition: An angiomyolipoma arising from the liver.
Hepatic Fibroma definition: A benign neoplasm arising from the liver. It is characterized by the presence of spindle-shaped fibroblasts.
Hepatic Fibrosarcoma definition: A usually aggressive malignant neoplasm arising from the liver. It is characterized by the presence of spindle-shaped fibroblasts and collagenous stroma formation in a herringbone growth pattern.
Carcinoma, Hepatocellular definition: A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested.
hepatoma definition: (HEP-a-toe-SEL-yoo-ler kar-sin-O-ma) A type of adenocarcinoma, the most common type of liver tumor.
hepatoma definition: (hep-a-TOE-ma) A liver tumor.
hepatocellular carcinoma definition: primary malignant neoplasm of epithelial liver cells; it ranges from a well-differentiated tumor with epithelial cells indistinguishable from normal hepatocytes to a poorly differentiated neoplasm; the cells may be uniform or markedly pleomorphic, or form giant cells; associations exist with chronic hepatitis B virus infection, some types of cirrhosis, and hepatitis C virus infection.
Hepatocellular Carcinoma definition: A malignant tumor that arises from hepatocytes. Hepatocellular carcinoma is relatively rare in the United States but very common in all African countries south of the Sahara and in Southeast Asia. Most cases are seen in patients over the age of 50 years, but this tumor can also occur in younger individuals and even in children. Hepatocellular carcinoma is more common in males than females and is associated with hepatitis B, hepatitis C, chronic alcohol abuse and cirrhosis. Serum elevation of alpha-fetoprotein occurs in a large percentage of patients with hepatocellular carcinoma. Grossly, hepatocellular carcinoma may present as a single mass, as multiple nodules, or as diffuse liver involvement. Microscopically, there is a wide range of differentiation from tumor to tumor (well differentiated to poorly differentiated tumors). Hepatocellular carcinomas quickly metastasize to regional lymph nodes and lung. The overall median survival of untreated liver cell carcinoma is about 4 months. The most effective treatment of hepatocellular carcinoma is complete resection of the tumor. Lately, an increasing number of tumors have been treated with liver transplantation.
 
 
deGerman
hepatisch definition: [1] Anatomie: zur Leber gehörend, die Leber betreffend