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  • Title: [Leukocytoclastic vasculitis with severe renal involvement following Parvovirus B19 primary infection].
    Author: Engel F, Maradeix S, Braun-Parvez L, Lipsker D, Cribier B.
    Journal: Ann Dermatol Venereol; 2007 Feb; 134(2):160-3. PubMed ID: 17375014.
    Abstract:
    BACKGROUND: Leukocytoclastic vasculitis following Parvovirus B19 primary infection has occasionally been reported in children but it occurs rarely in adults. We present an original case report with severe renal complications. PATIENTS AND METHODS: A 33-year-old man presented with fever and eruption of the abdomen and members. Papules and vesiculopustules were associated with oral and genital ulcerations. These lesions subsequently became purpuric and necrotic. Histological analysis confirmed the diagnosis of pustulous leukocytoclastic vasculitis with IgA deposits. Laboratory investigations showed elevated sedimentation rate, hepatic cytolysis and renal impairment (hematuria, leucocyturia and proteinuria 1.5 g/24 hours). Anti-parvovirus B19 IgM were positive. Three months after the eruption resolved, IgM were undetectable while anti-parvovirus B19 IgG appeared. Renal injury progressively worsened: elevation of proteinuria (5 g/24 hours) and diminution of creatinine clearance (51 ml/min). Renal biopsy showed glomerulonephritis with mesangial IgA deposits. Major proteinuria persisted one year after the disappearance of dermatological lesions in spite of ACE inhibitor treatment. DISCUSSION: The role of Parvovirus B19 has been suspected as an aetiological agent in many kinds of vasculitis, e.g. polyarteritis nodosa, Wegener's disease and leucocytoclastic vasculitis. In this case report, the detection of specific IgM and the absence of other factors associated with vasculitis are consistent with a causal role of Parvovirus B19. In previously published cases, the prognosis of parvovirus B19-associated vasculitis does not seem to differ from that of idiopathic vasculitis. To our knowledge, this is the first case exhibiting concomitant and persistent severe renal involvement.
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