患儿女 ,1d ,G1P1,胎龄 39周 ,出生体重 30 5 0g。其母分娩过程中因疑胎儿有隐性脐带脱垂 (实际为膨出的脑组织 )而行剖宫产。出生后查体 :反应可 ,头围 32cm ,前囟界限不清 ,后囟可触及。前囟与后囟之间近枕部处顶骨缺如 ,缺损处横径 6 5cm左右 ,纵径与前囟相连 ,见鸡蛋大小 Children with children, 1d, G1P1, gestational age 39 weeks, birth weight 3050g. Cesarean section is performed on suspected mother’s implicit umbilical cord prolapse (actually bulging brain tissue) during her mother’s delivery. After birth, physical examination: the reaction can be, head circumference 32cm, anterior fontanel not clear, can be touched after the skull. Anterior bregma and posterior fontanelle at the occipital absent, the defect at a diameter of about 6 5cm, longitudinal diameter connected with the anterior fontanelle, see the size of the egg