Gallbladder sludge may also be seen on ultrasound. Small gallstones ... which means that they may look like a "ball" stuck to ...

The diagnosis of gallbladder sludge was made by ultrasound scan in 286 (1.7%) of 17,021 patients. The mean follow-up period for these patients was 20.3 +/- 11.5 mo. Of this group 56 patients were ...