发热是许多疾病的首现或最主要症状,临床诊断常有困难,特别是所谓不明原因发热,一直是临床诊断工作的热点和难点,国内外均有此类经典论述[1]。近年来,实验室诊断和影像学技术的发展为解决疑难病症包括发热的诊断提供了强有力的支持,但有部分临床医师因此滋长了忽视临床、过度依赖或滥用检查的现象,加重了患者的经济负担,同时也 Fever is the first or most important symptom of many diseases. Clinical diagnosis is often difficult. Especially the so-called unexplained fever has been a hot and difficult point in clinical diagnosis. Both of these classic treatises have been published both at home and abroad [1]. In recent years, advances in laboratory diagnostics and imaging techniques have provided strong support for the diagnosis of difficult conditions, including fever, but some clinicians have thus developed the phenomenon of ignoring clinical, over-reliance or abuse checks, aggravating the patient’s Economic burden, at the same time