子宫颈内口
- 网络ostium uteri internum
子宫颈内口-
子宫颈妊娠图像特征：宫腔内未见妊娠囊，子宫颈内口关闭，子宫颈管内见不规则妊娠囊或回声紊乱区，彩色血流信号丰富。
The image characteristics of cervical pregnancy included absence of the gestational sac in the uterine cavity , closed cervical internal os , irregular gestational sac or diffuse amorphous echoes in the cervical canal with extensive colour blood flow .