End-Stage Renal Disease, Autoimmune Hepatitis, Alveolar Hemorrhage and ANCA Vasculitis as a Complication of Chronic Hepatitis B Virus: An Unusual Case Report

Abstract

Background: End stage renal disease, autoimmune hepatitis and alveolar hemorrhage have rarely been reported as the complications of hepatitis B virus infection that can potentially be triggered by an antibody-mediated vasculitis as a result of a viral infection. The following was a case report detailing a patient presenting with all three of the above presentations who was cytoplasmic antineutrophil cytoplasmic antibody-positive and a chronic carrier of hepatitis B virus. Case presentation: A 52-year-old Malagasy woman presented in our intensive care unit for acute respiratory failure with end-stage renal disease and deterioration in general condition. She was managed with steroids, non-invasive ventilation, and hemodialysis. Laboratory test showed elevated levels of serum creatinine and liver enzymes. An extensive workup was done to find the etiology of elevated liver enzymes. Only blood work that came back positive was for chronic inactive hepatitis virus B and positive autoantibody suggestive of autoimmune hepatitis. A computed tomography scan of her lung revealed features suggestive of bilateral alveolar hemorrhage. Workup for other causes of vasculitis, including anti-neutrophil cytoplasmic antibodies (ANCA) was positive for c-ANCA antibody to proteinase 3. Medical investigations allowed excluding other infectious diseases, malignancies and other rheumatic and vasculitis affections. Administration of lamivudine® orally was done. The patient was followed for more than one year and there were no other new systematic symptoms. Conclusion: This case report showed the possibility of hepatitis B virus-induced vasculitis as the cause of alveolar hemorrhage, autoimmune hepatitis, and end stage renal disease. The origin of these symptoms was attributed to immune complex-mediated vasculitis induced by antineutrophil cytoplasmic antibody.