多毛细胞白血病(ha iry ce ll leukem ia,HCL),简称毛白,是一种临床较少见的疾病,来源于B淋巴细胞系,发病以40 y以上者多见,男性多于女性。临床特点为:起病隐袭,慢性病程,反复感染,显著脾脏肿大,终末期脑膜可受累,血象呈全血细胞减少,血片、骨髓片中出现特征性多毛细胞,通常以 Hairy-hair cell leukemia (HCL), referred to as white hair, is a clinically uncommon disease derived from the B lymphocyte lineage, more than 40 years of onset is more common, more men than women. Clinical features are: onset of insidious, chronic disease course, repeated infection, significant splenomegaly, end-stage meninges can be affected, blood was pancytopenia, blood films, bone marrow slices characteristic hair cells, usually