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    Some patients who present with a "fever" may only have a localized increase in body surface temperature, while their core body temperature remains normal. This phenomenon is commonly referred to as pseudo fever. A retrospective analysis of clinical data from January 2013 to January 2020 at our fever clinic showed that 66 adolescents were diagnosed with pseudo fever. These patients typically showed a gradual increase in axillary temperature after their cold symptoms had disappeared. Most patients reported no significant complaints other than mild dizziness. Laboratory tests showed no significant abnormalities, and antipyretics were ineffective in lowering their body temperature. Pseudo fever is a relatively independent clinical phenomenon that is distinct from functional fever or simulated fever, and its underlying mechanism remains to be studied.


    H X Lu, X Chen, Y Z Zhai, H J Xiao, G Liu. Clinical analysis of 66 cases of pseudo fever]. Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases. 2023 Jul 12;46(7):697-699

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    PMID: 37402660

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