Tumours of a spinal cord - make 15 % of all tumours of the central nervous system. Allocate extramedullary tumours.

Extramedullary tumours can settle down under a firm cerebral environment and above it. Extradural tumours, as a rule, malignant (metastasises). Among subdural tumours of 70 % extramedullary. The most frequent subdural extramedullary tumours are neurinoma (30 %) and meningiomas (25 %). The typical picture of an extramedullary tumour develops of three stages: a stage of radicular pains, a stage of a partial compression of a spinal cord and a stage of a full cross-section prelum of a spinal cord. After radicular pains at a level of a tumour (more often similar pains are observed at neurinoma and metastatic tumours) abaissement of sensitivity and disturbance in the field of a basin gradually accrues.