Snapshot A 35-year-old man presents to the emergency department for nausea, malaise, fatigue, and abdominal pain. He says that his abdominal pain is in the right upper quadrant and is not associated with meals. Medical history is significant for HIV infection. He intravenously injects himself with heroin and reports to sharing needles. Physical examination is notable for right upper quadrant tenderness and scleral icterus. Laboratory testing is remarkable for a marked transaminitis. Serology demonstrates the presence of HBsAg and HDAg. Introduction Classification login to view 1 more bullet Microbiology login to view 5 more bullets Epidemiology login to view 2 more bullets Associated conditions login to view 5 more bullets Presentation Symptoms login to view 3 more bullets Physical exam login to view 1 more bullet Studies Serologic studies login to view 8 more bullets Differential Hepatitis A infection login to view 2 more bullets Hepatitis B infection login to view 2 more bullets Hepatitis C infection login to view 2 more bullets Treatment Medical login to view 4 more bullets Complications Acute fulminant hepatic failure Cirrhosis Hepatocellular carcinoma