结论：胎盘血管瘤可引起早产、羊水过多、新生儿窒息等并发症；
Conclusion:Placental chorioangioma can induce several complications such as premature labor, polyhydramnios and neonatal asphyxia.
胎盘血管瘤在产前不易确诊，彩色多普勒超声是产前诊断胎盘血管瘤的唯一辅助手段。
Color Doppler is helpful to differential diagnosis of placental masses particularly placental chorioangioma, though the later is difficult to diagnose artte partum.
摘要胎盘绒毛膜血管瘤是胎盘最常见的良性肿瘤。
Placental chorioangioma is the most common benign tumor of placenta.
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