Kidney Stones, also known as renal calculi, are hard masses that separate urine from the urinary tract. These stones can occur anywhere in the urinary tract, including the kidneys, bladder, ureters and urethra.
This fluid is called the cerebrospinal fluid (CSF). When it leaks out, the pressure around the brain and spinal cord drops. Causes of leakage through the dura include: 1  Certain head, brain, or spinal surgeries.  Head injury.
Pneumocephalus, which is a buildup of air within the cranial cavity, is another life-threatening complication associated with CSF leaks. If the leak does not heal on its own, other treatments may include placing a lumbar drain to assist the tear in self-repair or surgical repair of the tear.t the Yale Sinus and Allergy Program, we are specialists in treating cerebrospinal fluid leaks and the symptoms associated with them. Cerebrospinal fluid is a clear, colorless fluid that surrounds the spinal cord and brain.