Each pair of the spinal nerves leaves each spinal cord segment and innervates a dermatome, ... The pia mater is the thin innermost membrane that covers the spinal cord, nerve roots, ...

MRI or CT proven disc herniation without spinal nerve root impingement: L3: 0: 0: L4: 1: 0.9: L5: 12: 10.3: S1: 17: 14.6: MRI or CT normal or with minor degenerative changes without spinal nerve ...

Neuralgia is pain in one or more dermatomes due to irritation, entrapment or inflammation of a nerve or nerve root; The main clinical characteristics are stabbing, burning or shooting pain along the ...

Numbness can be just in one small area, or over a whole region of the body, called a dermatome. The quality of the pain can be pins-and-needles, aching or burning. Burning is very common.