A case of hypocomplementaemic urticarial vasculitis in a child due to coxsackievirus type A9

摘要

At first, we thought that the patient had Kawasaki disease, but a skin biopsy showed overriding evidence of urticarial vasculitis and serum complement levels were severely reduced. Treatment with prednisolone was effective. We isolated and confirmed CA9 from all samples (nasal fluid, serum and stool). We also analysed CA9 genetically.