胎盘绒毛膜血管瘤超声征象对比研究

目的 通过对比研究胎盘绒毛膜血管瘤超声声像与其他胎盘肿瘤超声声像,探讨胎盘绒毛膜血管瘤特殊类型的超声征象特点,提高产前诊断准确率。方法 分析2010年1月至2011年6月间首都医科大学附属北京妇产医院诊断的20例胎盘绒毛膜血管瘤病例资料,研究产前二维、三维及彩色多普勒超声声像与彩色血流特点,结合病理特点,同时与其他胎盘肿瘤超声声像相鉴别,总结出胎盘绒毛膜血管瘤特殊类型的超声征象特点。结果 20例胎盘绒毛膜血管瘤中,10例(50%)为常见超声特征表现(胎盘实质内边界清晰的圆形或椭圆形实性低回声或中等回声,回声低于胎盘,瘤体内见丰富血流信号),6例(30%)呈现出特殊的超声声像(胎盘实质内边界清晰范围较小的实性低回声内仅见1条粗大的血流信号),4例(20%)胎盘绒毛膜血管瘤误诊。结论 常见的胎盘绒毛膜血管瘤超声声像易发现、易诊断,可是在以往的实际工作中仍易漏诊、误诊。本次研究发现并总结出胎盘绒毛膜血管瘤特殊类型的超声声像特点,可提高临床的正确诊断率。

Comparative study on sonographic characteristics of placental chorioangioma

Objective The common placental chorioangioma can be diagnosed by ultrasound examination. Alternatively, the aim of this study was to find the unusual sonographic characteristics for placental chorioangioma in order to raise the accuracy of prenatal diagnosis. Methods Clinical data of 20 patients with placental chorioangioma during pregnancy diagnosed in the hospital from January 2010 to June 2011 were analysed. According to prenatal ultrasonography B-mode, 3D or color Doppler flow imaging,(CDFI)], clinical pathological characteristics and distinguishing from other placental tumors, unusual sonographic characteristics of placental chorioangioma were explored. Results Among 20 patients with placental chorioangioma during pregnancy, 10 patients(50%) were found to have definite the common ultrasound features;6 patients(30%) were discovered to have uncommon ultrasound features-smaller size of mass, CDFI: a strong signal showing blood flow into it;in 4 patients placental chorioangioma was misdiagnosed. Conclusion The common chorioangioma can be easily diagnosed by ultrasound examination, but sometimes some of placental chorioangioma was missed. Unusual sonographic characteristics of placental chorioangioma may help diagnose the unusual placental chorioangioma and raise the accuracy of diagnosis.