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Gastroenterology. Gallstone ileus is a rare form of small bowel obstruction caused by an impaction of a gallstone within the lumen of the small intestine. Such a gallstone enters the bowel via a cholecysto - enteric fistula. The presence of large stones, >2.5 cm in diameter, within the gallbladder are thought to predispose to fistula formation ...
A gallstone is a stone formed within the gallbladder from precipitated bile components. [ 2] The term cholelithiasis may refer to the presence of gallstones or to any disease caused by gallstones, [ 5] and choledocholithiasis refers to the presence of migrated gallstones within bile ducts . Most people with gallstones (about 80%) are ...
21–22. Right and left kidneys. The front border of the liver has been lifted up (brown arrow). [ 3] The bile duct[ 1][ 4] (formerly known as the common bile duct[ 4]) is a part of the biliary tract. [ 4] It is formed by the union of the common hepatic duct and cystic duct. It ends by uniting with the pancreatic duct to form the ...
In adults, the gallbladder measures approximately 7 to 10 centimetres (2.8 to 3.9 inches) in length and 4 centimetres (1.6 in) in diameter when fully distended. [3] The gallbladder has a capacity of about 50 millilitres (1.8 imperial fluid ounces). [2] The gallbladder is shaped like a pear, with its tip opening into the cystic duct. [4]
The Schwarzschild radius or the gravitational radius is a physical parameter in the Schwarzschild solution to Einstein's field equations that corresponds to the radius defining the event horizon of a Schwarzschild black hole. It is a characteristic radius associated with any quantity of mass. The Schwarzschild radius was named after the German ...
The tonne (t) is an SI-compatible unit of mass equal to a megagram ( Mg ), or 10 3 kg. The unit is in common use for masses above about 10 3 kg and is often used with SI prefixes. For example, a gigagram ( Gg) or 10 9 g is 10 3 tonnes, commonly called a kilotonne .
Most polyps are benign and do not need to be removed. Surgical removal of the gallbladder (cholecystectomy) is recommended when a gallbladder polyp larger than 1 cm is found, even if the person has no symptoms clearly related to the polyp. Laparoscopic surgery is an option for small or solitary polyps. [citation needed]
1 × 1010[ 47] There are actually two black holes, orbiting at each other in a close pair with a 542-day period. The largest one is quoted, while the smaller one's mass is not defined. [ 47] Black hole of central elliptical galaxy of RX J1532.9+3021. 1 × 1010[ 48] QSO B2126-158. 1 × 1010[ 23] – 4.9+1.13.