Please help! What is the most common tumor of the spinal cord?

Astrocytomas. Tumors that arise in the osseous spine and invade the cord are the vertebral tumors. Tumors that begin within the cells of the spinal cord are the Intramedullary tumors , such as astrocytomas or ependymomas. The other tumors (extramedullary) develop within the supporting network of cells around the spinal cord and include schwannomas, meningiomas and neurofibromas.