Figure 4From: Atrophic dermatofibrosarcoma protuberans: report of a case demonstrated by detecting COL1A1-PDGFB rearrangement Detection of surgical specimen revealed a fusion of collagen 1 α1 gene ( COL1A1 ) exon 31, to exon 2 of the platelet derived growth factor B gene ( PDGFB ). Back to article page