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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 ...
Bowel obstruction, also known as intestinal obstruction, is a mechanical or functional obstruction of the intestines which prevents the normal movement of the products of digestion. [ 2 ][ 5 ] Either the small bowel or large bowel may be affected. [ 1 ] Signs and symptoms include abdominal pain, vomiting, bloating and not passing gas. [ 1 ]
Rhinophyma develops in certain individuals with an unknown predisposition from long-standing rosacea which has progressed to a severe form. [2]Although rhinophyma has been commonly presumed to be linked to alcoholism, a direct causal relationship between the condition and excessive alcohol consumption has not been substantiated. [2]
The heaviest of this widespread, varied complex of insects is the Little Barrier Island giant weta, Deinacrida heteracantha, of New Zealand; one specimen weighed 71 g (2.5 oz) and measured nearly 10 cm (3.9 in), [2] giving it one of the largest insects weights ever known. These heavyweight insects can be over 9 cm (3.5 in) long.
Nasal cavity. The nasal cavity is a large, air-filled space above and behind the nose in the middle of the face. The nasal septum divides the cavity into two cavities, [ 1] also known as fossae. [ 2] Each cavity is the continuation of one of the two nostrils. The nasal cavity is the uppermost part of the respiratory system and provides the ...
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]