Moles Compound Nevi
Compound nevi are slightly or markedly raised pigmented papules. Nests of nevus cells are found both at the dermoepidermal junction and within the dermis. Compound nevi can have an irregular border but are symmetric. The surface may be smooth or slightly papillomatous. The center tends to be more heavily pigmented than the periphery. Hair may be present. If a white halo appears at the periphery of the lesion, it is referred to as a halo nevus. Compound nevi tend to increase in thickness and pigmentation in late childhood and adolescence.