Pathological situations where bile is available and its analysis could be helpful

Pathological situations
Benign or indeterminate biliary stenoses
Primary sclerosing cholangitis (PSC)
Chronic cholangitis at risk of developing cholangiocarcinoma (CCA) [repetitive chronic secondary cholangitis, immunoglobulin G4 (IgG4)-related cholangitis, etc.]
Chronic pancreatitis with biliary strictures
Pancreatic cysts with biliary strictures
Pancreatic ductal adenocarcinoma (PDAC), CCA, bile duct carcinoma (BDC), hepatocellular carcinoma (HCC), and ampullary cancer presenting biliary strictures and/or obstructive jaundice
Pancreatic surgery (pancreaticoduodenectomy or total pancreatectomy)
Acute cholangitis or cholecystitis
Patients with jaundice
Pathologies associated with biliary microcrystals: idiopathic acute pancreatitis, recurrent acute pancreatitis, unexplained biliary pain, and post-cholecystectomy biliary pain
Liver surgery: hepatectomy and transplantation