1. Active HBV infection
The positive surface antigen and positive core antibody are indicative of active hepatitis B infection, which can be either acute or chronic.
Additional laboratory evaluation revealed a C-reactive protein of 132 mg/dL and an erythrocyte sedimentation rate (ESR) of 45 mm/hr. Antinuclear antibody was negative as were antineutrophil cytoplasmic antibodies (ANCAs).
Abdominal ultrasound revealed slightly enlarged liver with normal echotexture. CT abdomen/pelvis showed the same with normal ducts and a normal pancreas without peripancreatic inflammation.
Which of the following is on your differential diagnosis? (Click on the correct answer to proceed to the fourth of six pages)