Although the involvement of cytomegalovirus (CMV) infections in the development of thrombotic microangiopathy (TMA) in HIV patients and transplant recipients has been reported, it is still controversial whether CMV itself can cause TMA. We report herein a rare case with rapid improvement of TMA by ganciclovir treatment in a patient who is neither HIV-positive nor a transplant recipient, suggesting a pathogenic role for CMV in TMA.
The etiopathogenesis of extrahepatic manifestations including vasculitis in the context of HCVinfection is still unknown. Wereport a case with lethal extrahepatic manifestations due to chronic hepatitis C virus (HCV) infection. The patient presented leukocytoclastic vasculitis, sensorimotor neuropathy and membranoproliferative glomerulonephritis with positive rheumatoid factor but lacked cryoglobulin. Hypocomplementaemia and deposition of IgM and C3 in the vascular lesion and glomeruli suggested that immune complex disease played a role in the pathogenesis of extrahepatic manifestations independent of cryoglobulin. Although HCVwas successfully eliminated by treatment with interferon a, she died of cryptococcal infection.
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