A 48-year-old woman comes to the physician for a follow-up appointment. She had a cholecystectomy and appendectomy performed many years ago. Vitals are normal. Laboratory studies show:
Total bilirubin 2.4 g/dL (NR <1.2)
Alkaline phosphatase 400 IU/L (NR 50-150)
Amylase 90 IU/L (NR 30-110)
Which of the following is the most likely diagnosis?
Cholecystitis
Common bile duct choledocholithiasis
Hepatopancreatic ampulla choledocholithiasis
Impingement on common bile duct
Primary sclerosing cholangitis
