Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «G»:
-
Galenic arteriovenous malformation
Galenic arteriovenous malformation: See: Vein of Galen aneurysm....
-
Galeophobia
Galeophobia: An abnormally large and persistent fear of
sharks. Sufferers from this phobia experience anxiety even though
they may be safe on a boat or in an aquarium or on a beach. Hollywood
films depicting sharks as calculating, vengeful diabolical monsters
have no doubt enkindled the fear of ...
-
Gallbladder
Gallbladder: A pear-shaped organ just below the liver that stores the bile secreted by the liver. During a fatty meal, the gallbladder contracts, delivering the bile through the bile ducts into the intestines to help with digestion. Abnormal composition of bile leads to formation of gallstones, a pr...
-
Gallbladder absence
Gallbladder absence: This condition, also known as agenesis (failure of development) of the gallbladder, occurs in approximately one out of every 1,000 people.
Gallbladder agenesis is an isolated abnormality in more than two-thirds (70%) of people with agenesis. The person with isolated agenesis of...
-
Gallbladder agenesis
Gallbladder agenesis: This is a condition in which the gallbladder fails to develop. This happens in approximately one out of every 1,000 people.
Gallbladder agenesis is an isolated finding in more than two-thirds (70%) of people. The person with isolated gallbladder agenesis is healthy. No treatm...
-
Gallium
Gallium: A rare metal with the
atomic weight of 69. There are several isotopic forms of
gallium that differ from it in atomic weight. One is
gallium-68 which is produced by cyclotrons and emits gamma
rays. The citrate form of gallium-68 is used as a
radiotracer to locate sites of inflammation ...
-
Gallop rhythm
Gallop rhythm: Heart rhythm like the gallop of a horse. ...
-
Gallstone pancreatitis
Gallstone pancreatitis: Gallstone-induced pancreatitis. Pancreatitis due to gallstones....
-
Gallstones
Gallstones: Stones that form when substances in the bile harden. Gallstones can be as small as a grain of sand or as large as a golf ball. There can be just one large stone, hundreds of tiny stones, or any combination.
Gallstones can block the normal flow of bile if they lodge in any of the ducts t...
-
Gallstones and ERCP
Gallstones and ERCP: ERCP (endoscopic retrograde
cholangiopancreatography) is a diagnostic procedure done to look for
diseases of the liver, bile ducts and pancreas. A flexible tube is
put down the throat, through the stomach, and into the small
intestine. The doctor can see through the tube and...
-
Gallstones, microscopic
Gallstones, microscopic: A mixture of microscopic particulate matter in bile, also called biliary sludge, that occurs when particles of material precipitate from bile. (Bile is the fluid that is made by the liver. It is stored in the gallbladder until after a meal when it passes out of the gallbladd...
-
Gallus gallus
Gallus gallus: The Red Jungle Fowl, the ancestor of domestic chickens....
-
Gallus gallus genome
Gallus gallus genome: The genome of the Red Jungle Fowl, the ancestor of domestic chickens. See: Chicken genome....
-
GALT
GALT: The enzyme (galactose-1-phosphate uridyl transferase) lack of which causes the genetic metabolic disease called galactosemia. GALT is also the symbol for the gene that encodes the enzyme....
-
GALT deficiency
GALT deficiency: Lack of the enzyme called GALT (galactose-1-phosphate uridyl transferase) which causes the genetic metabolic disease galactosemia, one of the diseases in many newborn screening panels. The disease can be fatal, if undetected. If detected, it can be treated by avoiding galactose in t...
