A 50-year-old man with well-controlled type II diabetes mellitus comes to the emergency department 24 hours after the onset of abdominal pain. Temperature is 102 F. Examination shows scleral icterus. Laboratory studies show:
WBC 16,000/μL
Glucose 600 mg/dL
Total bilirubin 5.0 mg/dL
Direct bilirubin 2.0 mg/dL
ALP 320 IU/dL
Amylase 100 IU/L
Which of the following is the most likely diagnosis?
Biliary cirrhosis
Cholangitis
Cholecystitis
Hepatitis
Pancreatitis (acute on chronic)
