Anechoic zones in the fetal brain suggest that the fetus may have hydrocephalus or cysts in the ventricles of the brain.
The presence of anechoic areas on ultrasound refers to a homogeneous and consistent fluid. The presence of anechoic areas in the fetal brain represents the presence of fluid at the site of the examination, which can usually be considered to be intraventricular hydrocephalus as well as cysts. Fetal hydrocephalus is associated with fetal ventricular dysfunction, and monitoring of the lateral ventricles is necessary during pregnancy. Severe hydrocephalus can lead to poor brain development and mental retardation.
Fetal cerebral cysts are more common in clinical practice and can usually dissipate on their own, but close monitoring is needed to avoid further progression of the condition.
In the clinic, the presence of anechoic areas in the fetal brain should be regularly reviewed, if the anechoic areas do not disappear, and progressively serious, we need to consider termination of pregnancy, the specific need to follow the doctor’s instructions.