Lupus-like glomerulonephritis: an autoimmune complication of hepatitis C infection

CEN Case Reports
Liliane HobeikaKrista L Lentine

Abstract

Lupus-like glomerulnephritis in patients with negative lupus serologies and no extra-renal manifestations of lupus can create a diagnostic dilemma. We describe a 53-year-old gentleman with chronic hepatitis C virus (HCV) infection who presented with dialysis-requiring renal failure, renal histologic findings of "full-house" immunofluorescence label and tubuloreticular inclusions on electronic microscopy, but no extra-renal or laboratory signs of systemic lupus erythematosis. Attempted treatment with cyclophosphamide and corticosteroids was limited by cyclophosphamide hypersensitivity. The patient remained dialysis-dependent over 18 months of observation and did not develop extra-renal clinical or biological manifestations of lupus. Mimics of seronegative lupus with isolated renal involvement can include HCV-related autoimmunity. Treatment of acute glomerulonephritis may be similar initially, but other concerns in patients with HCV infection include excluding cryoglobulinemia, the potential impact of immunosuppression therapy on liver disease and consideration of subsequent use of antiviral therapy. Given the increasing prevalence of HCV globally, the recognition of extra-hepatic autoimmune manifestations of HCV infection will l...Continue Reading

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