Cervical Intramedullary Astrocytoma - Posterior Approach
6 years ago
Primary neoplasm of astrocytic origin within spinal cord. IA is the most common intramedullary spinal cord tumor outside the filum terminale (30%) Uncommon in first year. Peak: 3rd -- 5th decade. Male : Female = 1,5 : 1. The ratio of benign : malignant = 3 : 1 in all ages. 80-90% are low grade (fibrillary or pilocytic). 10-15% are high grade (anaplastic or GB).