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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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pterional craniotomy

Professional Technical IVT

A specific surgical approach involving a bone flap centered around the pterion to access the anterior circulation and sk...

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retrosigmoid approach

Professional Technical IVT

A lateral suboccipital surgical approach posterior to the sigmoid sinus for accessing cerebellopontine angle pathology.

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seizure focus

Professional Technical IVT

The specific brain region where epileptic seizures originate, identified through various diagnostic methods.

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seizure prophylaxis

Intermediate Technical IVT

Preventive antiepileptic medication administration to reduce seizure risk in neurosurgical patients.

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somatosensory evoked potentials

Professional Technical IVT

Electrophysiological monitoring technique measuring nervous system response to sensory stimulation during surgery.

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stereotactic biopsy

Advanced Technical IVT

Minimally invasive procedure using 3D coordinates to precisely target brain tissue for sampling.

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stereotactic frame

Intermediate Technical IVT

A rigid head fixation device that provides a three-dimensional coordinate system for precise localization during neurosu...

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stereotactic radiosurgery

Advanced Technical IVT

Precise, non-invasive radiation therapy technique delivering focused beams to specific brain targets.

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subdural hematoma

Professional Technical IVT

Collection of blood between the dura mater and arachnoid membrane, typically resulting from torn bridging veins.

SDH
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subgaleal hematoma

Intermediate Technical IVT

Blood collection beneath the scalp's galea aponeurotica layer, often occurring after birth trauma or head injury.

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suboccipital craniotomy

Intermediate Technical IVT

A posterior fossa surgical approach through the occiput to access the cerebellum, brainstem, and fourth ventricle.

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subtotal resection

Intermediate Technical IVT

Incomplete surgical removal of a tumor or lesion, typically due to proximity to critical structures.

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supratentorial compartment

Intermediate Technical IVT

The portion of the intracranial space above the tentorium cerebelli, containing the cerebral hemispheres.

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surgical approach

Intermediate Technical IVT

Specific anatomical route and technique used to access a brain lesion or target area.

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surgical planning

Intermediate Technical IVT

The comprehensive preoperative process of determining optimal surgical approach, technique, and risk mitigation strategi...

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syringomyelia

Professional Technical IVT

Formation of fluid-filled cysts (syrinxes) within the spinal cord parenchyma.

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tractotomy

Advanced Technical IVT

Surgical procedure involving the selective cutting or interruption of specific white matter tracts.

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transsphenoidal approach

Professional Technical IVT

Minimally invasive surgical route through the nasal cavity and sphenoid sinus to access pituitary and skull base lesions...

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tumor debulking

Intermediate Technical IVT

Surgical reduction of tumor mass when complete resection is not feasible due to location or risk factors.

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tumor margins

Professional Technical IVT

The boundaries between tumor tissue and normal brain parenchyma, critical for determining surgical resection limits.

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vasogenic edema

Intermediate Technical IVT

Brain swelling caused by breakdown of the blood-brain barrier, allowing fluid accumulation in the extracellular white ma...

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ventricular catheter

Intermediate Technical IVT

A flexible tube surgically placed into the brain's ventricular system to drain cerebrospinal fluid or monitor pressure.

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ventricular drainage

Intermediate Technical IVT

Surgical placement of a catheter into brain ventricles to drain cerebrospinal fluid.

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ventricular system

Intermediate Technical IVT

The interconnected network of fluid-filled cavities within the brain that produce and circulate cerebrospinal fluid.

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