SAPCD2 and fibrosarcoma: We further measured SAPCD2 expression in 54 benign fibroma samples, 48 low-level malignant dermatofibrosarcoma protuberans without fibrosarcomatous change (DFSP) samples and 59 highly malignant fibrosarcoma samples by immunohistochemical staining (IHC), and found that SAPCD2 expression was significantly elevated in the fibrosarcoma tissues compared with that in the benign fibroma tissues and DFSP tissues (Figures 1B–D).