Neuro Surgery Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
encephalocele
Congenital neural tube defect resulting in herniation of brain tissue through a skull opening.
cryptic arteriovenous malformation
A small, angiographically occult vascular malformation that may cause seizures or hemorrhage.
deep brain stimulation
Neurosurgical therapy involving implanted electrodes that deliver electrical pulses to specific brain targets.
durotomy
The surgical opening or incision of the dura mater, the tough outer membrane covering the brain.
electrocorticography
Direct recording of electrical activity from the brain's cortical surface during surgery.
eloquent brain areas
Brain regions where damage would result in significant neurological deficit, requiring special surgical consideration.
eloquent cortex
Brain regions where damage would result in significant neurological deficit affecting speech, movement, or sensation.
encephalocele
Congenital neural tube defect resulting in herniation of brain tissue through a skull opening.
endoscopic endonasal approach
A minimally invasive surgical technique using endoscopy through the nasal passages to access skull base pathology.
epidural hematoma
A collection of blood between the skull and the dura mater, typically resulting from arterial bleeding following head tr...
external ventricular drain
A temporary catheter system placed into the brain ventricles to monitor intracranial pressure and drain cerebrospinal fl...
frameless stereotaxy
A surgical navigation technique that uses real-time imaging and computer guidance without requiring a rigid frame attach...
functional MRI
Advanced imaging technique that measures brain activity by detecting blood flow changes during specific tasks.
gamma knife radiosurgery
Non-invasive radiosurgical treatment delivering focused gamma radiation to intracranial targets with sub-millimeter prec...
Glasgow Coma Scale
Standardized neurological assessment tool measuring level of consciousness through eye, verbal, and motor responses.
glioblastoma multiforme
Aggressive primary brain tumor originating from glial cells, representing the most malignant form of glioma.
gliosis
Proliferation of glial cells in response to brain injury, appearing as areas of increased signal intensity on MRI imagin...
gross total resection
Complete surgical removal of a visible tumor with no residual mass apparent on imaging.
hemispherectomy
Surgical procedure involving removal or disconnection of an entire cerebral hemisphere.
hydrocephalus
Medical condition characterized by abnormal accumulation of cerebrospinal fluid in brain ventricles.
image-guided surgery
Neurosurgical technique using real-time imaging and navigation systems to enhance surgical precision.
infratentorial
Located below the tentorium cerebelli, referring to the posterior fossa containing the brainstem and cerebellum.
intracranial pressure
Pressure exerted by cerebrospinal fluid and brain tissue within the rigid skull compartment.
intraoperative neuromonitoring
Real-time neurophysiological assessment during surgery to prevent damage to neural structures.
intraoperative neurophysiological monitoring
Real-time monitoring of nervous system function during surgery to detect and prevent neurological injury.