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Figure 2: (a) Palpable annular erythema. Male, 41-year-old. Erythematous annular plaques at the neck. (b) Annular lichenoid dermatitis of youth. Male, 12-year-old. Annular thin plaque on the flank with an erythematous-brown edge and hypopigmented center. (c) Palpable annular erythema. A moderate perivascular and periadnexal lympho-histiocytic infiltrate, throughout the reticular dermis, with no epidermal involvement and lack of plasma cells (H&E, x100). (d) Annular lichenoid dermatitis of youth. Lichenoid lymphocytic infiltrate in the superficial dermis restricted to the tips of elongated and squared rete ridges with vacuolization of the epidermal basal cell layer. Scattered melanophages in the dermis (H&E, x100)

Figure 2: (a) Palpable annular erythema. Male, 41-year-old. Erythematous annular plaques at the neck. (b) Annular lichenoid dermatitis of youth. Male, 12-year-old. Annular thin plaque on the flank with an erythematous-brown edge and hypopigmented center. (c) Palpable annular erythema. A moderate perivascular and periadnexal lympho-histiocytic infiltrate, throughout the reticular dermis, with no epidermal involvement and lack of plasma cells (H&E, x100). (d) Annular lichenoid dermatitis of youth. Lichenoid lymphocytic infiltrate in the superficial dermis restricted to the tips of elongated and squared rete ridges with vacuolization of the epidermal basal cell layer. Scattered melanophages in the dermis (H&E, x100)