Neurosurgeons specialize in the prevention, diagnosis, treatment, and rehabilitation of disorders that affect any portion of the nervous system, including the brain, spinal cord, peripheral nerves, and extra-cranial cerebrovascular system. Treatment encompasses both non-operative management and operative management with its associated image use and interpretation. Operative management may include endovascular surgery, functional and restorative surgery, stereotactic radiosurgery, and spinal fusion. In conjunction with Springfield Memorial Hospital and HSHS St. John’s Hospital, state-of-the-art