Abstract Background Dermatofibrosarcoma protuberans (DFSP) is a superficial fibroblastic tumor characterized by high rate of local recurrence and low metastatic potential. Fibrosarcomatous transformation can rarely arise in DFSP either de novo or as recurrent. which represents a form of tumor progression and carries an increased risk of metastasis over classic DFSP. Cytogenetically. https://www.getpureroutine.com/