These included one dermatofibrosarcoma protuberans (COL1A1-PDGFB), one endometrial stromal sarcoma (YWHAE-NUTM2B, aka YWHAE-FAM22B), one gastrointestinal neuroectodermal tumor (EWSR1-CREB1), one inflammatory myofibroblastic sarcoma (TPM4-ALK), one inflammatory myofibroblastic tumor (TFG-ROS1), 2 myoepitheliomas (one FUS-NFATC2 and one TRPS1-PLAG1), 2 sclerosing epithelioid fibrosarcomas (one EWSR1-CREB3L2 and one FUS-CREB3L2) and one solitary fibrous tumor (NAB2-STAT6). This evidence concerns the gene COL1A1 and dermatofibrosarcoma protuberans.