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Neuro Surgery Glossary

100 terms total — 24 showing — Last updated 15 Sep 2026

encephalocele

Professional Technical IVT

Congenital neural tube defect resulting in herniation of brain tissue through a skull opening.

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A small, angiographically occult vascular malformation that may cause seizures or hemorrhage.

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deep brain stimulation

Intermediate Technical IVT

Neurosurgical therapy involving implanted electrodes that deliver electrical pulses to specific brain targets.

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durotomy

Professional Technical IVT

The surgical opening or incision of the dura mater, the tough outer membrane covering the brain.

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electrocorticography

Advanced Technical IVT

Direct recording of electrical activity from the brain's cortical surface during surgery.

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eloquent brain areas

Intermediate Technical IVT

Brain regions where damage would result in significant neurological deficit, requiring special surgical consideration.

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eloquent cortex

Intermediate Technical IVT

Brain regions where damage would result in significant neurological deficit affecting speech, movement, or sensation.

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encephalocele

Professional Technical IVT

Congenital neural tube defect resulting in herniation of brain tissue through a skull opening.

Technical Term Full entry →

endoscopic endonasal approach

Professional Technical IVT

A minimally invasive surgical technique using endoscopy through the nasal passages to access skull base pathology.

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epidural hematoma

Intermediate Technical IVT

A collection of blood between the skull and the dura mater, typically resulting from arterial bleeding following head tr...

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external ventricular drain

Intermediate Technical IVT

A temporary catheter system placed into the brain ventricles to monitor intracranial pressure and drain cerebrospinal fl...

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frameless stereotaxy

Advanced Technical IVT

A surgical navigation technique that uses real-time imaging and computer guidance without requiring a rigid frame attach...

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functional MRI

Intermediate Technical IVT

Advanced imaging technique that measures brain activity by detecting blood flow changes during specific tasks.

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gamma knife radiosurgery

Professional Technical IVT

Non-invasive radiosurgical treatment delivering focused gamma radiation to intracranial targets with sub-millimeter prec...

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Glasgow Coma Scale

Intermediate Technical IVT

Standardized neurological assessment tool measuring level of consciousness through eye, verbal, and motor responses.

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glioblastoma multiforme

Advanced Technical IVT

Aggressive primary brain tumor originating from glial cells, representing the most malignant form of glioma.

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gliosis

Intermediate Technical IVT

Proliferation of glial cells in response to brain injury, appearing as areas of increased signal intensity on MRI imagin...

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gross total resection

Intermediate Technical IVT

Complete surgical removal of a visible tumor with no residual mass apparent on imaging.

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hemispherectomy

Advanced Technical IVT

Surgical procedure involving removal or disconnection of an entire cerebral hemisphere.

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hydrocephalus

Intermediate Technical IVT

Medical condition characterized by abnormal accumulation of cerebrospinal fluid in brain ventricles.

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image-guided surgery

Intermediate Technical IVT

Neurosurgical technique using real-time imaging and navigation systems to enhance surgical precision.

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infratentorial

Intermediate Technical IVT

Located below the tentorium cerebelli, referring to the posterior fossa containing the brainstem and cerebellum.

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intracranial pressure

Intermediate Technical IVT

Pressure exerted by cerebrospinal fluid and brain tissue within the rigid skull compartment.

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intraoperative neuromonitoring

Advanced Technical IVT

Real-time neurophysiological assessment during surgery to prevent damage to neural structures.

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Real-time monitoring of nervous system function during surgery to detect and prevent neurological injury.

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