D细胞(Double Gell)是一群具有T细胞和B细胞双重表面标志的淋巴细胞,尽管对其来源、本质和功能目前尚无一致的结论,但已受到国内外越来越多的注意。已知丙球蛋白血症患者的外周血淋巴细胞中可出现高百分率的D细胞,而在急性、慢性淋巴细胞性白血病、毛细胞性白血病、淋巴母细胞性淋巴瘤患者中,也均发现有少数病例,其瘤细胞有相当高百分率的D细胞。 Double Gell is a group of lymphocytes with dual surface markers of T cells and B cells. Although there is no consistent conclusion on the origin, nature and function of D cells, it has attracted more and more attention both at home and abroad. It is known that a high percentage of D cells may appear in peripheral blood lymphocytes of patients with globulin, while in acute, chronic lymphocytic leukemia, hairy cell leukemia and lymphoblastic lymphoma, there are also found A few cases, the tumor cells have a high percentage of D cells.