“无脑儿”的英语？

结果: 无脑儿食管的组织学结构较正常胎儿分化较低,发育迟缓.Result: The histological structure of anencephalus differentiates primitively and grows very slowly.无脑儿显示胎儿颅穹窿缺陷.The absence of the fetal cranial vault anencephaly is shown here.无脑儿是胎儿颅穹窿缺陷....