传染性单核细胞增多症(以下简称IM)是由EB病毒感染引起的全身免疫性疾病。该病临床表现复杂,如不警惕,极易误诊。我院1987年3月～1990年8月共收治IM23例,其中误诊17例,现将误诊原因分析如下: 一般资料及诊断标准本组病例均系住院患儿,男8例,女9例,年龄0～3岁9例,3岁以上～6岁4例,大于6岁4例,均为散发病例,住院天数7～25天,平均15.8天。全部 Infectious mononucleosis (hereinafter referred to as IM) is a systemic immune disease caused by Epstein-Barr virus infection. The clinical manifestations of the disease complex, if not alert, easily misdiagnosed. The hospital from March 1987 to August 1990 were treated IM23 cases, of which 17 cases of misdiagnosis, misdiagnosis is now analyzed as follows: General information and diagnostic criteria This group of patients were hospitalized children, 8 males and 9 females, There were 9 cases aged 0 ~ 3 years, 4 cases aged 3 ~ 6 years old and 4 cases older than 6 years old. All of them were sporadic cases. The hospitalization days were 7 ~ 25 days with an average of 15.8 days. All