Your patient presents with right upper quadrant abdominal pain. The Liver function tests, lipase, and right upper quadrant ultrasound have all be ordered. Be sure to have a clear understanding to do with the data when it comes back. In this EMEd lecture we review biliary problems. We review the diagnostic criteria and treatment strategy for symptomatic cholelithiasis, acute cholecystitis, choledocholithiasis, gallstone pancreatitis, and cholangitis.