20%~30%的T-ALL/LBL可见髓系标志CD13、CD33。CD117偶尔阳性,可能与FLT3突变相关。不能因此排除T-ALL/LBL诊断,也不能确诊为混合细胞白血病。. The gene discussed is CD33; the disease is acute lymphoblastic leukemia.