A Dark Spot on the Right Sole

A 54-year-old female presented with an irregular hyperpigmented lesion on her right sole that quickly progressively developed for 1 year. Her lesion was itchy, painless, and about 1.5 cm in diameter with a central ulceration that produced clear discharge (see Fig. 30.1). Before admitted, she went to private clinical and had unknown diagnosis and treatment but the lesion didn’t improve.