感染性心内膜炎(infective endocarditic,IE)是微生物感染心内膜或邻近大动脉内膜,伴赘生物形成的炎症性疾病。早期诊断和及时恰当的抗生素治疗可大大提高治愈率[1,2]。现对2例右心内膜炎误诊原因进行了分析,报道如下。1病历摘要例1:男,34岁。因“发热,咳嗽20 d余”入院。20 d Infective endocarditis (IE) is an inflammatory disease caused by microbial infection of the endocardium or adjacent intima of the aorta, with neoplasms. Early diagnosis and timely and appropriate antibiotic treatment can greatly improve the cure rate [1,2]. Now 2 cases of misdiagnosis of right endocarditis were analyzed as reported below. 1 Medical Summary Example 1: Male, 34 years old. Because of “fever, cough for more than 20 days” admission. 20 d