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Images 10.53.1A: Perivascular dermatitis + 10.53.1B: Ballooned and individual necrotic keratocytes in the upper part of the epidermis = Phototoxic dermatitis In the realm of photodermatitis, the presence of many individual necrotic keratocytes, revealed here by pyknotic nuclei and eosinophilic cytoplasm, indicates a phototoxic reaction. In photoallergic dermatitis and in polymorphous light eruption, by contrast, […]