membranous pregnancy

例句：

1. 1. The patient was diagnosed with a membranous pregnancy and required immediate medical attention.
   患者被诊断出膜状妊娠，需要立即接受医疗治疗。
2. 2.Membranous pregnancies are rare but can be life-threatening if not properly managed.
   膜状妊娠罕见但如不妥善管理可能危及生命。
3. 3.In some cases, the membranes of the uterus can become inflamed, leading to a membranous pregnancy.
   在某些情况下，子宫的膜层可能会发炎，导致膜状妊娠。