Abstract
Eosinophilic pleural effusion (EPE) can be caused by various aetiologies,such as infections,tumors,drugs,etc.In most classical articles,EPE indicates a lower risk of malignancy.Recent publications show that the incidence of malignancy shows no obvious difference between EPE and non-EPE,but a high percentage of eosinophils might imply a lower risk of malignancy.The incidence of tuberculosis-related EPE is previously regarded as fairly low,but in high-risk areas of tuberculosis,it is actually common that EPE in patients with tuberculous pleurisy.Further studies are highly needed due to the present controversy over whether repeated thoracentesis could increase the EPE incidence,as well as to dig out the probable causes of idiopathic EPE. Key words: Eosinophils; Pleural effusion; Eosinophilic pleural effusion; Aetiology
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