What is Most common cause of fetal ventriculomegaly is? and explain in detail?
Ans. is 'c' i.e., Aqueductal stenosis Hydrocephalus is characterized by an increased CSF volume with progressive ventricular dilatation (ventriculomegaly). o Obstructive or noncommunicating hydrocephalus/ventriculomegaly develops most commonly in children because of an abnormality of the aqueduct or a lesion in the 4' ventricle. o Obstruction of the aqueduct is the single most common cause of fetal and neonatal hydrocephalus/ ventriculomegaly. o Nonobstructive or communicating hydrocephalus most commonly follows a subarachnoid hemorrhage, which is usually a result of intraventricular hemorrhage in a premature infant.