| Summary: | We present the case of a 22-year-old male with chronic hepatitis B virus (HBV) infection, who developed nephrotic syndrome and had complete remission after lamivudine monotherapy. Renal biopsy showed membranous glomerulopathy, and the serum titer of HBV DNA increased to 1,130,000 copies/mL. As symptomatic therapy with angiotensin converting enzyme inhibitors did not improve the nephrotic syndrome, lamivudine 100 mg per day was started. His alanine aminotransferase level normalized 2 months after treatment, then hepatitis B e antigen seroconversion developed and serum HBV DNA became undetectable. His proteinuria improved subsequently and his leg edema disappeared completely 6 months after treatment. Neither hepatitis nor nephrotic syndrome had relapsed by month 13 when he came for follow-up. This suggests that lamivudine monotherapy may induce and maintain complete remission of membranous glomerulopathy associated with hepatitis B.
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