Solitary Verrucous Plaque on the Right Pretibial Region

A man in his 50s presented with a 4-month history of pruritic, verrucous lesions on the right lower leg. Physical examination revealed a well-demarcated, verrucous plaque on the right pretibial region, with elevated borders, superficial pustules, exudates, peripheral erythema, and erosion. What is your diagnosis?