Communicating Hydrocephalus: Axial CT scans. Note that all the ventricles are markedly dilated, including the fourth ventricle. There is very little cerebral atrophy. Also, ... One presentation of ...

A. Nobody really knows exactly what causes it. Mostly, what we see with the expansion of the ventricles is probably a secondary issue. Sometimes trauma, infection or subarachnoid hemorrhage can cause ...

In nearly all cases, it results from impaired CSF absorption. Rarely, hydrocephalus occurs from excess CSF production. One presentation of communicating hydrocephalus is that of normal pressure ...