Desmoplastic malignant melanoma (a rare variant of spindle cell melanoma).

@article{Conley1971DesmoplasticMM,
  title={Desmoplastic malignant melanoma (a rare variant of spindle cell melanoma).},
  author={Jared Conley and R. Lattes and William F. Orr},
  journal={Cancer},
  year={1971},
  volume={28 4},
  pages={914-36}
}