Melanoma arising in nevus spilus.

@article{Weinberg1998MelanomaAI,
  title={Melanoma arising in nevus spilus.},
  author={Jeffrey M. Weinberg and Pamela J Schutzer and Ronald Milton Harris and Ibrahim A. Tangoren and Srijan Sood and Robert I. Rudolph},
  journal={Cutis},
  year={1998},
  volume={61 5},
  pages={
          287-9
        }
}
Nevus spilus is a pigmented skin lesion composed of a pigmented macule on which darker lesions appear at a later stage. There are an increasing number of reports of malignant melanoma occurring within these lesions, leading to greater concern regarding the malignant potential of these lesions. We describe the case of a fatal malignant melanoma arising in a congenital nevus spilus.