Fetal neurosonography represents a cornerstone in the prenatal evaluation of the central nervous system. Advances in high-resolution ultrasound and standardized imaging protocols have significantly improved the early detection and characterization of fetal brain anomalies. A detailed understanding of the sonographic patterns associated with ventriculomegaly, neural tube defects, and midline developmental disorders such as holoprosencephaly is essential for accurate diagnosis, counseling, and management. This course provides clinicians with an evidence-based framework for interpreting complex neurosonographic findings, bridging anatomy, embryology, and clinical decision-making.