NAFFZIGER SYNDROME - Intervertebral
disc disease, cervical rib, or some other disorder causes
the scalene muscles to go into spasm, resulting in pressure
on the major nerve plexus of the arm causing pain in
the neck, shoulder, arm, and hand; scalenus anticus
NEOPLASM - Any new or abnormal growth, specifically
a new growth of tissue in which the growth is uncontrolled.
NERVE - A whitish cordlike structure composed of one
or more bundles of myelinated or unlyelinated fibers,
or more often mixtures of both coursing outside of the
central nervous system, together with connective tissue
within the fascicle and around the neurolemma of individual
NERVE ROOT - The portion of a spinal nerve in close
proximity to its origin from the spinal cord.
NEURALGIA - A paroxysmal pain extending along the course
of one or more nerves.
NEUROFIBROMA - Fibrous tumor of a nerve, which may
affect a nerve root and thus give the appearance of
herniated disc disease.
NEUROSURGERY - The surgical specialty involved in the
treatment of disorders of the brain, spinal cord, and
NEURAL ARCH - The bony arch of the posterior aspect
of a vertebra that surrounds the spinal cord, also referred
to as the vertebral arch.
NEURALGIA - Pain of a severe, throbbing, or stabbing
character in the course or distribution of a nerve.
NEURECTOMY - Excision of part of a nerve.
NEURITIS - Inflammation of a nerve; may also be used
to denote non-inflammatory nerve lesions of the peripheral
NEUROBLASTOMA - Tumor of sympathetic nervous system
origin, found mostly in infants and children.
NEUROFIBROMA - A tumor of the peripheral nerves due
to an abnormal collection of fibrous and insulating
NEUROFIBROMATOSIS - A familial condition characterized
b by developmental changes in the nervous system, muscles
and skin, marked by numerous tumors affecting these
NEUROHYPOPHYSIS - The posterior lobe of the pituitary
NEUROLYSIS - Removal of scar or reactive tissue from
a nerve or nerve root.
NEUROMA - A tumor or new growth largely made up of
nerve fibers and connective tissue.
NEUROMUSCULAR SCOLIOSIS - Scoliosis caused by a muscle
or central nervous system disorder.
NEUROPATHY - Any functional or pathologic disturbance
in the peripheral nervous system.
NEUROSTIMULATOR - A device for electrical excitation
of the central or peripheral nervous system.
NEWMAN - C-1 to C-2 posterior fusion without fixation.
NON-UNION - Failure of the fragments of a fractured
bone to heal or to obtain bony fusion following an arthrodesis.
NUCHAL LIGAMENT - Large posterior midline ligament
in the neck from the base of the skull to the seventh
NUCLEUS PULPOSUS - The semi-gelatinous tissue in the
center of an intervertebral disc. It is surrounded and
contained by the annulus fibrosus which prevents this
material from protruding outside the disc space.
NURICK SCALE - Classification scale for spinal cord
compression due to spondylosis.
NYSTAGMUS - Involuntary rapid movement of the eyes
in the horizontal, vertical or rotary planes of the
Back to Top