传染性单核细胞增多症（以下简称传单）是小儿期较常见的由ＥＢ病毒所致的急性传染病。以发热、咽峡炎、淋巴结及脾脏肿大为特征，其他脏器也可有损害，病情表现多样，易误诊。我们于１９９０年１月～１９９４年１２月共收治传单患者６０例，误诊３０例。报告如下。１临床资料 Infectious mononucleosis (hereinafter referred to as leaflets) is more common in children during the EB virus caused by acute infectious diseases. To fever, angina, lymph nodes and splenomegaly characterized by other organs can also have damage, the performance of diverse, easily misdiagnosed. From January 1990 to December 1994, we treated 60 cases of flyers and 30 cases were misdiagnosed. The report is as follows. 1 clinical data