Bone marrow microvessel counts were positively correla ted with percentage of marrow myeloblasts both in acute myeloid leukemia and acu te lymphocytic leukemia samples(r=0.399,0.525;P=0.009,0.030).

• 急性髓细胞性白血病(AML)和急性淋巴细胞性白血病(ALL)患者初发时骨髓微血管数与初发时的骨髓原始细胞百分数呈正相关(r=0.；399；