DermNet NZ: Dermatofibrosarcoma Protuberans - General information for patients with the disease includes pictures, treatment options, and prognosis. Dermatofibrosarcoma Protuberans (DFSP) - Medical and scientific information about the disease includes variants, images, and links to abstracts. Wikipedia: Dermatofibrosarcoma Protuberans (DFSP) - Features information about this rare tumor. Dermatofibrosarcoma Protuberans - Brief outline of disease includes diagnostic testing, differentials, links, prognosis, and treatment options. Giant Cell Fibroblastoma - Brief outline of disease includes differentials, links, treatment options and information about how it is linked to Dermatofibrosarcoma Protuberans. eMedicine: Dermatofibrosarcoma Protuberans - Article by Chih-Shan Jason Chen, MD, PhD about this uncommon soft tissue neoplasm with intermediate-to-low grade malignancy.