EDEMA - An excessive accumulation of fluid generally in extracellular.

EDWARDS - A posterior rod and sleeve device used in stabilization of traumatic spinal conditions.

EGGSHELL - Excavation of vertebral body for correction of deformity that is combined with spinal fusion.

ELECTROENCEPHALOPGRAHY (EEG) - The study of the electrical currents set up by brain actions; the record made is called an electroencephalogram.

ELECTROMYOGRAPHY (EMG) - A method of recording the electrical currents generated in a muscle during its contraction.

ENCEPHALOCELE - Protrusion of the brain through a cranial fissure.

ENDARTERECTOMY - Removal of fatty or cholesterol plaques and calcified deposits from the internal wall of an artery.

ENDOCRINE GLAND - A gland which furnishes an internal secretion, usually having an effect on another organ.

ENDOCRINOPATHY - Any disease due to abnormality of quantity or quality in one or more of the internal glandular secretions.

ENDOGENOUS - Arising within or derived from the body.

ENDOSCOPE - A medical device for viewing internal portions of the body. It is usually comprised of fiber optic tubes and video display instruments.

ENDOSCOPY - Inspection of internal body structures or cavities using an endoscope.

EPENDYMA - The membrane lining the cerebral ventricles of the brain and central canal of the spinal cord.

EPENDYMOMA - A growth in the brain or spinal cord arising from ependymal tissue. Tumor of the spinal cord.

EPIDURAL - Immediately outside the dura mater. Same as extradural.

EPIDURAL HEMATOMA - A blood clot between the dura mater and the inside of the skull.

EPILEPSY - Disorder characterized by abnormal electrical discharges in the brain, causing abnormal sensation, movement or level of consciousness.

ESOPHAGUS - Portion of the gut between the mouth and in the anterior neck.

EXCISION - Removal by cutting away material.

EXTRADURAL - On the outer side of the dura mater.

EXOGENOUS - Originating outside of the body.

EXTENSION - The act of bringing the distal portion of a joint in continuity (though only parallel) with the long axis of the proximal portion.

EXTRUSION - Displaced material reaches the spinal canal through fibers of the annulus, but remains connected to the central disc material.

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