2901415 FS-DFSP fibrosarcomatous DFSP 16 2901416 FS-DFSP fibrosarcomatous dermatofibrosarcoma protuberans 10 2901413 FS-DFSP fibrosarcomatous transformation of DFSP 2 2901414 FS-DFSP fibrosarcomatous high grade variant of DFSP 1 2901418 FS-DFSP fibrosarcomatous transformation of DFSP in the metastatic lesions 1 2901417 FS-DFSP fibrosarcomatous variant of DFSP 1