A 45-year old obese, multiparous woman presented to the ER complaining of RUQ pain of 12 hours duration. The liver edge is moderately tender. The labs showed:
Total bilirubin
1.8mg/dl
(0.2-1.0)
AST
1100 IU/ml
(<40)
ALT
1200 IU/ml
(<40)
ALP
185 IU/ml
(<85)
Albumin and prothrombin time are normal. What is the most likely diagnosis?