Is there evidence of acute cholecystitis?
You need to know whether the patient was tender or not (i.e. was Murphy sign positive) - this patient was not. There is also no secondary signs of gallbladder wall thickening or pericholecystic fluid.
How common is cholelithiasis?
Approximately 10% of the population have cholelithiasis with a M:F of 1:2.
Several mobile calculi are shown in a thin-walled gallbladder, which was non-tender during the examination. There is no pericholecystic free fluid. The common bile duct measures no more than 7 mm in diameter. Pancreas and liver are normal in appearance.
Conclusion: Cholelithiasis.