Dermatofibrosarcoma protuberans or spindled melanoma?
D003937:Diagnosis, Differential; D005354:Fibrosarcoma / Q000473:pathology*; D006801:Humans; D008207:Lymphatic Metastasis; D008545:Melanoma / Q000473:pathology*; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*