case_images: PMC11214576_01
case_images: The initial lesions on the right arm, showing well-demarcated erythematous plaques and white macules at the first visit in 2022.
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case_images: A 51-year-old man with no family history of autoimmune disease was consulted by our department in 2022 for the appearance of erythematous papules on the face, arms, and the V zone of the neck, with pruritus for 3 years (Figure 1).
case_images: The arms showed generalized with varying sizes and irregularly shaped red maculopapules, plaques, warty hyperplasia, and local surface covered with white adhesive scales, partially accompanied by depigmentation at this visit.
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case_images: However, 10 months ago, the patient suffered from sun exposure, and lesions on his face, fore chest, both forearms and hands reoccurred and mainly localized to areas of pre-existing vitiligo patches, meanwhile, the surface hypertrophy was obvious (Figure 2).
case_images: Histologic section showing dermal vessels and periadnexal lymphocytic focal infiltrate (A. H&E, x40; B. H&E, x100).
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case_images: There is a focal infiltration of predominantly lymphocytes around the dermal vessels and skin appendages (Figure 3). 