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Figure 2: Histopathological findings of the skin biopsy samples in Case 1: (a) Prominent lamellar hyperkeratosis with whorls, keratin globules in the stratum corneum, focal perivascular lymphocytic infiltration in the papillary dermis and lymphocytic liquefaction of basal layer (H and E, ×100). (b) Focally increased melanin pigment in the basal layer of the epidermis. (Fontana-Masson, ×200)

Figure 2: Histopathological findings of the skin biopsy samples in Case 1: (a) Prominent lamellar hyperkeratosis with whorls, keratin globules in the stratum corneum, focal perivascular lymphocytic infiltration in the papillary dermis and lymphocytic liquefaction of basal layer (H and E, ×100). (b) Focally increased melanin pigment in the basal layer of the epidermis. (Fontana-Masson, ×200)