Patient's question:
No factors or causes of cold in March to MayDoctor's answer:
Posterior fossa fluid >1cm is abnormal, and if it exceeds 1.5cm, it may be considered for induction of labor. Cerebral ventricles can contain up to 10mm of fluid, and this result doesn't need to be too alarming. I don't know if the ultrasound doctor who performed the examination specializes in prenatal diagnosis. It would be best to review the other structures of the brain more carefully to distinguish whether it is simply posterior fossa fluid or combined with Dandy-Walker malformation. The latter is often associated with chromosomal abnormalities, and I believe an umbilical cord puncture should be performed for further testing. Some chromosomal abnormalities are not entirely due to heredity; early pregnancy viral infections, improper medication use, and other factors can also lead to malformations. Ultrasound monitoring is definitely necessary. Mild hydrocephalus requires regular follow-up, and it generally resolves on its own. Don't worry too much. A significant proportion of fetuses have hydrocephalus, and many will naturally resolve, with no impact on postnatal growth and development. Only a very small number of children may require surgical treatment. Posterior fossa fluid and lateral ventricular fluid are two different matters. Follow your doctor's advice and don't worry too much—maintaining a positive mood is most important.Recommendation: You should consult the ultrasound doctor based on the ultrasound examination results to discuss your condition. Then, you can decide whether to proceed.