The extradural tumor may extend into the intervertebral foramen. The intradural tumors can occur at any location around the circumference of the spinal dura. Most tumors tend to be lateral to the spinal cord, with ventrolateral being the most common site. MRI usually gives all the information needed to plan a surgical procedure. Myelography with CT scan is usually not needed.
Operation is indicated when there is pain or increasing neurological deficit.
Radiation therapy has not been used. I prefer the prone position for all spinal tumors, including those in the cervical region. It is important to localize the correct level by x-ray. The place of intraoperative spinal evoked potential monitoring has not been established. Generally, in these tumors this monitoring has not added useful infon-nation.