病理改变 Histopathological findings 白细胞碎裂性血管炎 Leukocytoclastic vasculitis IgA为主的免疫复合物沉积 Deposition of immune complexes of IgA(in the small vessels and glomeruli)病理改变Histopathological findings 白细胞碎裂性血管炎 Leukocytoclastic vasculitis IgA为主的免疫复合物沉积 Deposition of immune complexes of IgA(in the small vessels and glomeruli)