
Keywords: CD34; dermatofibrosarcoma protuberans; platelet-derived growth factor-β; spindle cell tumor; COL1A1; collagen 1 α1; DF; dermatofibroma; DFSP; dermatofibrosarcoma protuberans; FISH; fluorescence in situ hybridization; JXG; juvenile xanthogranuloma; PDGFB