There are a number of causes of spontaneous parenchymal haemorrhages. These include: hypertension, vascular malformations and aneurysms, neoplasm (primary or metastatic), cerebral amyloid angiopathy, use of antiplatelet agents or anti-coagulants, blood dyscrasias and drug abuse (e.g. amphetamine and cocaine use). Parenchymal haemorrhages could also be subdivided into ...

These are the cranial CT scans from a patient with a recent left cerebellar infarct . Due to the significant cytotoxic oedema as a result of the cerebellar infarct, the fourth ventricle is being compressed , thus obstructing the normal CSF flow. The CT scan shows features of obstructive ...

A lumbar puncture (LP, also known as a spinal tap) is a diagnostic and at times, therapeutic medical procedure. Diagnostic indications The main diagnostic indications of performing a LP is for collection and evaluation of cerebrospinal fluid (CSF) for diagnosis and exclusion of infectious, inflammatory ...