A 49-year-old white woman presented with a chronic eruption on her arms and legs that consisted of discrete, slightly hyperpigmented, thin plaques. The plaques had been present for at least 15 years. There was a seasonal variation in presentation, with an increase in number, darkening, and slight pruritus of the lesions in the summer months. Photoprotection partially alleviated these signs and symptoms. The patient used minimal photoprotection and had a history of sunburns. Her father and paternal grandmother had a history of similar eruptions.
Cohen JA, Skidmore RA, Woosley JT. Multiple Chronic Lesions With Peripheral Scale. Arch Dermatol. 1998;134(6):743-748. doi: