Hydrocephalus

Hydrocephalus: - Occur after subarachnoid or intra-ventricular hemorrhage impair CSF reabsorptionat at the level of the arachnoid granulations or obstruction at the level of the aqueduct or fourth ventricle outflow foramina. - mass effect can obstruct aqeduct or outflow foramina of the fourth ventricle - asymmetrical lateral ventricle result from obstruction of the foramen of Monro