Successful Outcome of a Corticodependent Henoch-Schönlein Purpura Adult with Rituximab
Figure 1
Skin biopsies of vasculitis lesions in lower limbs of the patient with refractory HSP (punch biopsy, 4 mm) were performed for routine histopathology and direct immunofluorescence. (a) Leukocytoclastic vasculitis: fibrin necrosis and infiltration of the blood vessel by neutrophils and conspicuous nuclear dust. Numerous extravasated blood cells (HES ×200). (b) IgA deposits in and around the vessel wall (direct immunofluorescence ×800).
