Lumbar Puncture (Spinal Tap)

Lumbar puncture, also known as spinal tap, is an invasive procedure where a hollow needle is inserted into the space surrounding the subarachnoid space in the lower back to obtain samples of cerebrospinal fluid (CSF) for qualitative analysis.

Hydrocephalus

Hydrocephalus is a condition characterized by an excess of cerebrospinal fluid (CSF) within the ventricular and subarachnoid spaces of the cranial cavity.