本文报导4例与重度预痫有关而无任何其他病因所致的左侧胸水。患者均系既往体健的年轻产妇,于妊娠后三个月早期发生重度预痫的典型症状(高血压、蛋白尿和浮肿);随后均因出现头痛、血压骤增而行较长期左侧位卧床休息;实验室化验显示;孕酸和纤维蛋白原降解产物升高及低蛋白血症;因病情严重和胎儿宫内生长迟缓分别于足月前行剖腹产术,婴儿出生体重均低。术前直立位X 线胸部摄影均显示左侧胸腔积水而无肺实质疾 This article reports 4 cases of severe preeclampsia without any other causes of the left pleural effusion. Patients were all healthy young maternal past, typical symptoms of severe pre-eclampsia (hypertension, proteinuria and edema) occurred three months after gestation; followed by headache, sudden increase in blood pressure and longer left-lateral Bed rest; laboratory tests show that uric acid and fibrinogen degradation products and hypoproteinemia; due to serious illness and fetal growth retardation were full-term caesarean section, the birth weight of infants are low. Preoperative X-ray chest imaging showed the left pleural effusion without pulmonary parenchymal disease