Biliary sludge or gallbladder sludge does not always ... Gallbladder sludge may be seen during an ultrasound. Usually, an ultrasound would be used when there are symptoms, and it's suspected ...

Tests that can establish the etiology of an attack of acute pancreatitis include endoscopic ultrasound ... and microscopic bile analysis for the detection of biliary sludge and microlithiasis.