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.
cervical spine c spine injuries are the most feared of all spinal injuries because of the potential for significant deleterious sequelae correlation is noted between the level of injury and morbidity mortality ie the higher the level of the c spine injury the higher the morbidity and mortality