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Figure 3: (B) Histology of the skin shows infl ammation in the dermis around the vessels and a crust formation at the site of prick (arrow). (C) Higher magnifi cation shows neutrophilic infi ltration, fibrin and leucocytoclasia at the site of vasculitis in the dermis. B (H & E, 120) C (H & E, 400)

Figure 3: (B) Histology of the skin shows infl ammation in the dermis around the vessels and a crust formation at the site of prick (arrow). (C) Higher magnifi cation shows neutrophilic infi ltration, fibrin and leucocytoclasia at the site of vasculitis in the dermis. B (H & E, 120) C (H & E, 400)