Acute cholecystitis
Acute cholecystitis. This patient with severe right upper quadrant pain has multiple shadowing calculi in the gallbladder. In this case, the gallbladder wall (arrows) is abnormally thickened (it measured 5 mm, with the upper limit of normal being 3 mm). You will also note that the ultrasonographer has labeled the image to indicate that the patient was sonographic Murphy’s sign positive, which can be a helpful sign when trying to confirm acute cholecystitis.