1病历摘要患儿男,出生1d。脐部囊肿1d。患儿母亲于2015年12月22日在我院妇产科自然分娩,顺产,发现男婴脐带(近胎儿侧)一大囊肿。患儿母亲24岁,既往体健,无明显妊娠反应。否认孕期感冒史及放射线或毒物接触史,定期产检。孕1个月余因“孕酮低”予以黄体酮保胎治疗;孕3个月余B超检查提示胎盘位置低,唐氏筛查示低 1 medical record summary male child, born 1d. Umbilical cyst 1d. Children with children in December 22, 2015 in our hospital obstetrics and gynecology natural childbirth, natural delivery, found that the baby boy umbilical cord (near the fetus side) a large cyst. Children 24 years old mother, past physical health, no significant pregnancy reaction. Denied the history of cold during pregnancy and exposure to radiation or poison, regular inspection. Pregnancy 1 month due to “progesterone low ” to progesterone miscarriage treatment; more than 3 months pregnant B ultrasound examination revealed placenta low, Down’s screening showed low