A puzzling black lesion

History

          A very interesting and puzzling case referred from another dermatologist of a 6-year-old girl presented with an asymptomatic, oval, blackish patch/plaque about 2×1 cm in greatest diametetrs involved the middle portion of the palm of six months duration. We put three differential diagnoses according to lesion’s morphology: Benign melanocytic nevus, pigmented BCC and malignant melanoma. An excisional biopsy was done and benign melanocytic nevus was the final diagnosis.