异常发育

RESULTS: Thirty-two cases were anencephalia, 31 hydrocephalus, 4 hydroancncephalus, 11 neningocele or encephalomeningocele, 25 spinal meningocele with myeloschisis, 12 Dandy-Walker deformity, 11 schizencephaly of forebrain and 22 choroid plexus cyst among the 148 fetuses. There were different expressions in various CNS deformities, which were correlated with abnormal development of embryo.

结果：148例中枢神经系统畸形胎儿中，无脑儿32例，脑积水3l例，积水性无脑4例，脑膜或脑脑膜膨出11例，脊柱裂脊膜膨出者25例，Dandy-Walker畸形12例，前脑无裂畸形11例，脉络丛囊22例，不同类型的中枢神经系统畸形有不同声像图表现，并与其胚胎发育过程异常相关。

Dimensiona ultrasonography data of 29 cases fetal anomaly between 24 and 40 weeks' gestation from Jan 2003 to Dec 2006. Results Among them, there were 11 cases of cheilognathus,7 cases of anencephalus, 4 cases of anomaly of extremities, 3 cases of omphalocele, 3 cases of lymphocyst at the neck and 1 case of amniotic band syndrome. The anomaly features are consistent with those of the born fetuses. Conclusion The three??

大部分解剖结构明显异常的畸形一般通过二维实时超声在22周左右即可做出诊断［1］，但胎儿体表结构有较复杂的曲面改变，二维超声可能漏诊、误诊胎儿体表畸形。20世纪80年代末应用于临床的三维超声成像，是检测胎儿发育状况的有效方法，大大提高了产前诊断的准确率，尤其在检测胎儿畸形方面具有独特优势［2］。

Moreover,20 to 35% of the 2n pollens induced byColchicine developed anomalously,which also affected the effects of triploid breeding.

此外，秋水仙诱导产生的2n花粉中，还有20~35%发育表现异常，也会对三倍体得率产生较大的影响。

Objective To evaluate the clinical application of multi-slice spiral CT angiography in developmental anomaly of aorta.

目的 探讨多层螺旋CT血管成像对主动脉发育异常的诊断价值。

Methods: We retrospectiely analyzed twenty-four hips in twenty patients who underwent a Bernese periacetabular osteotomy, which was done with a proximal femoral algus-producing osteotomy in thirteen hips, for the treatment of acetabular dysplasia associated with proximal femoral structural abnormalities.

我们回顾性分析20位患者中的24例髋关节，他们都进行过Bernese periacetabular截骨术，对于髋臼发育不良合并股骨近段的结构异常分别在13例髋关节完成了股骨近段外翻截骨成型术。

The abnormality of tetrad callose wall degradation and tapetum development was associated with the abortion of microspore.

导致小孢子败育的原因与四分体胼胝质壁不适时解体和绒毡层细胞发育异常、延迟解体有关。

Objective To explore the value of MRI on fetal central nervous system.

目的探讨MRI在胎儿中枢神经系统发育异常中的应用价值。

In some tetrads, the four nuclei were fused to form onelarge cell with increased chromosome number.

这两种小孢子发育的异常只发生在两个植株的部分四分体中，甚至于同一个四分体的个别细胞中。

The x-ray features mainly showed the multiple and iterative fractures and concrescence abnormality, osteoporosis, and thinner cortical bone.

先天性成骨不全影像学表现具有特征性， X线、超声是诊断先天性成骨不全的重要方法，超声为产前诊断胎儿骨骼发育异常的首选方法。

The worst affected suffer cretinism, the symptoms of which include severe mental retardation and physical stunting.

受害最严重的是克汀病，症状包括严重的智力迟钝和身体发育异常。。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。