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恶性肿瘤特异性生长因子（ＴＳＧＦ）是恶性肿瘤及其周边毛细血管大量增生的产物，是恶性肿瘤细胞表面表达的一种生物活性物质，可随着恶性肿瘤细胞的形成和生长释放到外周血液中，健康人血清中有少量存在。作者通过检测健康人及恶性肿瘤患者及非恶性肿瘤患者的ＴＳＧＦ水平，
Tumor specific growth factor (TSGF) is a product of massive proliferation of malignant tumors and surrounding capillaries. It is a biologically active substance expressed on the surface of malignant tumor cells and can be released into peripheral blood with the formation and growth of malignant tumor cells. There is a small amount of serum in healthy people. The authors examined the levels of TSGF in healthy and malignant patients and non-malignant tumors.