case_images: PMC10581004_01
case_images: Multiple eroded hyperpigmented flat-topped papules and nodules with few verrucous papules and nodules on the perianal area.
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case_images: On physical examination, multiple, 3-12 mm sized flat-topped moist verrucous papules and nodules with some lesions coalescing to form plaques were noticed at the perianal area (Figure 1).
case_images: Histopathologic findings. (A) Prominent hyperkeratosis, parakeratosis and irregular hyperplasia in the epidermis (Hematoxylin and eosin; x 40). (B) Mild lymphocytic infiltration in the dermis (Hematoxylin and eosin; x 100).
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case_images: Punch biopsy specimen revealed prominent hyperkeratosis, parakeratosis, irregular epidermal hyperplasia (Figure 2A) and mild lymphocytic infiltration in the dermis (Figure 2B).
case_images: The lesions improved after 6 weeks of treatment.
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case_images: After 6 weeks of treatment, the lesions improved significantly (Figure 3).