Hydrocephalus onset after microsurgical or endovascular treatment for acute subarachnoid hemorrhage. Retrospective italian multicenter study.

Background: Chronic shunt-dependent hydrocephalus is a complication of aneurysmal subarachnoid hemorrhage (aSAH). Its incidence and risk factors have been described while the hydrocephalus onset in terms of days after treatment (microsurgical or endovascular) has not been yet analyzed.

Materials And Methods: 45 patients, treated for aSAH in 4 Italian Neurosurgical Departments, were retrospectively analyzed.

Putaminal hemorrhages.

The putamen is a common site of hypertensive cerebral hemorrhage. Such hemorrhages show a large range of possible presentations - from enormous hemorrhages involving the white matter of the hemispheres and the ventricular system, to cases occurring without causing any symptoms or neurological signs. The symptoms of onset, the clinical evolution and the outcome are largely due to the magnitude of the initial blood extravasation.

An unusual growth of an intraventricular meningioma: a case report.

Intraventricular meningiomas are rare often histologically benign tumors arising most always from the trigonal region of the lateral ventricle. We report the first described case of a rapidly growing histologically benign intraventricular meningioma in a 68-year-old woman whose magnetic resonance imaging (MRI) executed 1 year before surgical operation was negative for intracranial mass lesion.