a subtype of hepatocellular carcinoma that is found in adolescents and young adults without coexisting liver disease
a procedure in which a small piece of tissue is removed from an organ in order to examine it under a microscope. usually done to rule out malignancy of a tumor.
a malignant (cancerous) growth in one of the ducts that carries bile from the liver to the small intestine. also known as bile duct cancer
fine needle aspiration
a procedure in which a thin needle is placed into a tissue or organ. cells are acquired by drawing them up into a syringe
term that means "demonstrating excessive color flow when evaluated with color doppler."
microbubble enhanced sonography
the injection of a contrast (which consists of microbubbles in a suspension) for the purpose of enhancing the visualization of the vascularity of a mass on sonography
a true neoplasm of vascular origin, characterized by proliferation of endothelial cells in and about the vascular lumen; it is usually considered to be intermediate in grade between hemangioma and hemangiosarcoma but sometimes is used to denote the latter.
accounts for the majority of all primary liver cancers. this type of cancer occurs more often in men than women, usually in people 50-60 years old. the disease is more common in parts of Africa and Asia than in north or south America and Europe. most common cause in America is alcoholic cirrhosis.
a substance injected into the blood stream that increases the contrast between tumors and normal liver tissue, making them more visible
a rare type of cancer seen in patients with immune deficiency. mainly seen in patients with AIDS.
this is stored energy. it is made primarily by the liver and the muscles, but can also be made by glycogenesis within the brain and stomach. it is stored in the liver and when energy is needed it is converted into glucose and released in the blood.
an unusual property of an organ or tissue (ie shape, size, or form) which usually does not cause medical problems for the patient.
Liver Function Tests
include direct bilirubin, indirect bilirubin, serum protein, albumin, beta globulin, Alkaline Phosphate (ALP), Alpha Fetal Protein (AFP), Aspartate Aminotransferase (AST)/Serum Glutamic Oxaloacetic Transaminase (SGOT), Alanine Aminotransferase (ALT)/Serum Glutamic Pyruvic Transaminase (SGPT), cholestero, Lactic Dehydrogenase (LDH), and Prothrombin Time (PTT)
this is the parasite that causes hydatid disease (tapeworm 3-6mm long) most common in sheep and cattle herding countries.
a variant or anomaly in which the organs are located (by varying degrees) on the opposite side of the body
autosomal dominant traits
traits that are expressed if present on one gene. only one parent has to have the trait to have a child with the same trait
this type of jaundice occurs due to an obstruction of bile flow out of the liver which causes it to spill over into the blood.
Flatworms that can occur in bile ducts, gallbladder, and liver parenchyma. they feed on blood. adult flukes produce eggs which are passed into the intestine. it respires anaerobically. its life cycle contain two hosts: sheep and snail.
a shunt used in patients with portal hypertension. it connects the right portal vein to the right hepatic vein in order to relieve pressure in the portal vein system.
a collection of pus (dead neutrophils) that has accumulated in a cavity formed by the tissue in which the pus resides on the basis of an infections process (usually caused by bacteria or parasites or other foreign materials.
a benign, focal malformation that resembles a neoplasm in the tissue of its origin. this is not a malignant tumor, and it grows at the same rate as the surrounding tissues. it is composed of tissue elements normally found at that site, but which are growing in a disorganized mass. they occur in many different parts of the body and are most often asymptomatic and undetected unless seen on an image take for another reason.
an artifact commonly seen in the presence of gas. It appears as bright white vertical lines on the US images. See in cases of biliary hamartoma from the cholesterol crystals that are trapped in the mass during development.
a type of abdominal wall defect in which the intestines, liver, and occasionally other organs remain outside the abdomen in a sac because of a defect in the development of the muscles of the abdominal wall
the time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent
the enlargement of an organ (or part of an organ) due to damage or agenesis of an organ (or part of an organ)
a discrepancy or deviation from an established appearance or shape. these may eventually cause problems for the patient.
autosomal recessive traits
traits not expressed unless the gene is present on both autosomal chromosomes. both parents must be carriers to produce a child with this type of hereditary disease.
a bull's eye lesion composed of rings of varying echogenicity resembling a bull's eye pattern
occurs when the diaphragm invaginates into the liver during embryological development and remains stuck there
multiple tube-like structures appearing around the portal vein which represent collaterals in the presence of portal vein obstruction or impedance to portal vein flow into the liver
an ester derived from glycerol and three fatty acids. it is the main constituent of vegetable oil and animal fats
a parasite commonly known as blood-flukes and bilharzia, includes flatworms which are responsible for the msot significant parasitic infection of humans by causing the disease schistosomiasis.