慢性白细胞增多一般是骨髓增殖性疾病的一种表现,与慢性感染、恶性肿瘤等有关。但也存在原因不明者,称为慢性特发性白细胞增多症(Chronic idiopathicLeukocytosis,CIL)(1)。本病报告较少(2)。我们将近期所见1例报告如下。[病例摘要]患者男性,7岁。因白细胞增多持续2年余就诊。1983年8月患儿因感冒查白细胞18.200/mm~3,用多种抗生素治疗20余日,虽然感冒症状早已消退,但白细胞仍高,以后无任何治疗、患儿也无任何症状。6个半月后,在 Chronic leukocytosis is generally a manifestation of myeloproliferative diseases, and chronic infection, cancer and so on. But there are also unexplained persons, known as chronic idiopathic leukocytosis (CIL) (1). The disease reported less (2). We will see a recent report is as follows. [Case Summary] Patient Male, 7 years old. Due to leukocytosis for more than 2 years treatment. August 1983 children with cold check leukocyte 18.200 / mm ~ 3, with a variety of antibiotics for more than 20 days, although the cold symptoms have subsided, but the white blood cells are still high, no treatment after any children with no symptoms. Six and a half months later