A CSF leak is when CSF drains from a tear or hole in the membrane that surrounds the brain and spinal cord. In rare cases, the drainage can escape from a person's nose—appearing like a runny nose.

a sample of your cerebrospinal fluid is retrieved. The most common way to attain a sample is through a lumbar puncture, also known as a spinal tap.‌ Spinal taps can be unnerving or uncomfortable ...

A lumbar puncture is a test to check the fluid that circulates around the brain and spinal cord. This is called the cerebrospinal fluid or CSF. A lumbar puncture can check for cancer cells or for ...

W.M. ANSWER: CSF surrounds and supports the brain ... I’ve seen this used in people with fluid drainage after a spinal tap or an epidural injection. DEAR DR. ROACH: Why don’t we eat eggshells?

the outermost protective layer around the brain and spinal cord. This can happen due to trauma, surgery, or spontaneous causes. Symptoms of a CSF leak include severe headaches, nasal drainage ...

A lumbar puncture is used to take a sample of the cerebrospinal fluid from the lower back. This fluid flows around the spinal cord and the brain, and clears waste products. Levels of certain proteins ...