传染性单核细胞增多症,是由EB病毒引起的急性或亚急性全身性免疫异常性疾病。年长儿症状较重,较典型,而幼儿多为轻症,不典型,甚至为隐性感染,易于误诊漏诊。为提高对本病的认识,现将我院1982～1989年收治的7例分析报道如下。 临床资料 本组共7例,男4例,女3例。发病年龄最小9个月,最大4岁8个月,其中<1岁2例,～2岁2例～5岁3例。7年无大流行,但四季均有散在发病,以秋末冬初较多见。7例均有发热,其中高热3例,中度发热4例,最高达40℃,均为不规则热型。7例均有咽部充血,扁桃体肿大、腭疹、假膜、溃疡各1例。肝大5例(71.4％),主要以轻、中度肿大为主,最大肋下6cm。脾大5例(71.4％),轻度 Infectious mononucleosis syndrome is an acute or subacute systemic immune abnormality caused by Epstein-Barr virus. Elderly children heavier symptoms, more typical, while children are mostly mild, atypical, or even latent infection, easy misdiagnosis. To raise awareness of the disease, now our hospital from 1982 to 1989 admitted seven cases reported as follows. Clinical data of this group a total of 7 cases, 4 males and 3 females. The minimum age of onset of 9 months, up to 4 years and 8 months, of which <1 year in 2 cases, ~ 2 years old 2 ~ 5 years old in 3 cases. Seven years without a pandemic, but the four seasons are scattered incidence, more common in early autumn and winter. All 7 cases had fever, of which 3 cases were hyperthermia, 4 cases were moderate fever and up to 40 ° C, all of them were irregular heat type. All 7 cases had pharyngeal hyperemia, tonsil swelling, palate rash, pseudomembranous and ulcer in 1 case. 5 cases of hepatomegaly (71.4%), mainly in light and moderate swelling, the largest rib 6cm. Splenomegaly in 5 cases (71.4%), mild