A 56-year-old man from Thailand presented with abdominal pain and a mass in the right upper quadrant. He reported that he had been diagnosed with viral hepatitis several years previously. Investigations showed: Serum alpha-fetoprotein 13,500 IU/L (< 10) What is the most likely underlying viral infection?

A 56-year-old man from Thailand presented with abdominal pain and a ma

1.	A 56-year-old man from Thailand presented with abdominal pain and a mass in the right upper quadrant. He reported that he had been diagnosed with viral hepatitis several years previously. Investigations showed: Serum alpha-fetoprotein 13,500 IU/L (< 10) What is the most likely underlying viral infection?
A.	Hepatitis A virus
B.	Hepatitis B virus
C.	Hepatitis C virus
D.	Hepatitis D virus
E.	Hepatitis E virus
Answer» C. Hepatitis C virus

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