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Top left panel: Banff Grade 1 AR (clinical picture) Top right panel: Histopathology of Grade 1 AR showing mild perivascular infiltration (arrows). No involvement of overlying epidermis. Bottom left panel: Banff Grade 2 AR (clinical picture) Bottom right panel: Histopathology of Grade 2 AR showing perivascular inflammation with/without mild epidermal or adnexal involvement (arrows). No epidermal dyskeratosis or apoptosis observed.
