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Figure 2: H and E, ×40. Dermatofibroma. Hyperplastic epidermis with hyperpigmentation of the basal layer and elongated epidermal ridges. Proliferation of fibroblast like spindle cells in the dermis, separated from the upper epidermis by a Grenz zone. This dermal tumor has poorly defined margins and trapped collagen bundles on the periphery of the lesion, ×400. Fibroblast like spindle cells

Figure 2: H and E, ×40. Dermatofibroma. Hyperplastic epidermis with hyperpigmentation of the basal layer and elongated epidermal ridges. Proliferation of fibroblast like spindle cells in the dermis, separated from the upper epidermis by a Grenz zone. This dermal tumor has poorly defined margins and trapped collagen bundles on the periphery of the lesion, ×400. Fibroblast like spindle cells