Crescentic glomerulonephritis complicating the course of a hypocomplementemic urticarial vasculitis

The authors report a case of crescentic glomerulonephritis leading to end-stage renal failure in a patient affected by a hypocomplementemic urticarial vasculitis (HUV). The patient's clinical course was characterized by the survey of several episodes of extra-renal vasculitis. We emphasize that HUV commonly considered as a limited form of vasculitis might in some cases have a dramatic evolution.