The spine is a very elaborately designed organ that has well organized tissues and nerves. It is the brain and spine that runs the entire body and controls its vital functions. The spine has a central spinal cord that is sheathed in by the hard bones (vertebrae) to defend it from damage. There is also a cerebrospinal fluid that flows throughout the brain and spine, as well.
Spine Tumors are basically tumors of the spine. These could also be of two basic types- primary type affecting the spinal cord first or metastatic type affecting another organ first (such as breast, lungs & prostate) and then spreading to the spinal cord.