<unk>  is a surgical method for removal of calculi, stones formed inside certain organs, such as the urinary tract (kidney stones), bladder (bladder stones), and gallbladder (gallstones), that cannot exit naturally through the urinary system or biliary tract.
Lithotomy
Rib removal
Thoracentesis
Paracentesis
Axotomy
Decortication
Pleurodesis
Cricoidectomy