%0 Journal Article %T Persistent benign pleural effusion. %A Porcel JM %J Rev Clin Esp (Barc) %V 217 %N 6 %D Aug 2017 0 %M 28479076 暂无%R 10.1016/j.rce.2017.03.008 %X In this narrative review we describe the main aetiologies, clinical characteristics and treatment for patients with benign pleural effusion that characteristically persists over time: chylothorax and cholesterol effusions, nonexpansible lung, rheumatoid pleural effusion, tuberculous empyema, benign asbestos pleural effusion and yellow nail syndrome.