Abstract
Floating gallbladder of Gross type B causes peritonitis by torsion more frequently than type A because of lacking the mesentery between the gallbladder and the liver. To estimate the prognosis of floating gallbladder needs to differentiate the two types. We investigated the usefulness of laparoscopy to differentiate the two types of floating gallbladder, Gross type A and B, by comparing with other examinations. Ultrasonography showed mobility of the gallbladder with changes of the patients positions but failed to distinguish the difference of the two types of floating gallbladders. Neither CT scan, nor cholecystography exhibited any abnormal position of the gallbladder. However, laporo-scopy could show the mesentery between the gallbladder and the liver, and provide the diagnosis of Gross type A or B.
