Compare the pathophysiology of Communicating and Non-Communicating Hydrocephalus?

Communicating hydrocephalus occurs when cerebrospinal fluid (CSF) is able to flow between the ventricles but is improperly absorbed into the bloodstream, often due to conditions like meningitis or subarachnoid hemorrhage. In contrast, non-communicating hydrocephalus is caused by a physical obstruction within the ventricular system, such as a tumor or congenital malformation, preventing CSF from flowing between the ventricles. Both types lead to increased intracranial pressure and can cause similar clinical symptoms, but their underlying mechanisms and potential treatments differ significantly.