[名词解释] 羊水栓塞(amnionic fluid embolism)

胎儿窘迫 胎盘滞留 与食管癌关系密切的癌前病变的病理改变是() ["A．食管上皮增生","B．食管粘膜中性粒细胞浸润","C．食管粘膜淋巴细胞浸润","D．食管粘膜糜烂","E．食管粘膜充血水肿"] 不完全性子宫破裂(incomplete rupture of uterus) 胎盘剥离后滞留 羊水栓塞(amnionic fluid embolism)