Guest edited by two visionaries in the field, Andrew Parsa and Paul McCormick bring their expertise and unparalleled knowledge to this edition. By assembling a range of world-class surgeons, this edition includes cutting-edge topics by pioneers of the specialty. The optimal treatment for intramedullary spinal tumors is controversial, because both resection and conventional radiation therapy are associated with potential morbidity. This issue covers both surgeries in depth, and is one of the first texts to do so.