As a domain expert in the field of neuro-oncology, I can provide you with an informed response regarding the prevalence of benign spinal tumors. It's important to note that the statistics can vary slightly depending on the source and the population being studied. However, based on the information provided, we can deduce the following: - Intramedullary tumors, which are tumors located within the spinal cord, are relatively rare and constitute only about 5 to 10 percent of all spinal tumors. - When considering benign tumors specifically, such as meningiomas and neurofibromas, they represent a larger proportion of primary spinal tumors. Specifically, benign tumors account for 55 to 65 percent of all primary spinal tumors. To answer your question directly, the percentage of spinal tumors that are benign is approximately 55 to 65 percent when considering primary spinal tumors. It's important to remember that this percentage may not include metastatic spinal cord tumors, which are tumors that have spread to the spine from another part of the body. read more >>

About 10,000 Americans develop primary or metastatic spinal cord tumors each year. Intramedullary tumors are rare, accounting for only five to 10 percent of all spinal tumors. Benign tumors such as meningiomas and neurofibromas account for 55 to 65 percent of all primary spinal tumors.read more >>