Neuro Surgery Glossary

WHO grade III astrocytic tumor characterized by increased cellularity, nuclear atypia, and mitotic activity.

Abnormal vascular connection between arteries and veins bypassing normal capillary circulation.

Primary brain tumor arising from astrocytes, classified by WHO grade and molecular features including IDH mutation statu...

Neurosurgical procedure performed while the patient remains conscious to monitor brain function.

A brain tumor whose pathological diagnosis has been confirmed through tissue sampling. Used to distinguish from radiogra...

Standardized clinical examination and testing procedures used to determine irreversible cessation of all brain function.

Gentle displacement of brain tissue using specialized instruments to create surgical exposure while minimizing injury.

Movement and deformation of brain tissue during surgery due to CSF loss and tissue manipulation.

Return of tumor growth after initial treatment, requiring ongoing monitoring and potential re-intervention.

A small circular hole drilled through the skull to access the brain or relieve pressure.

A postoperative complication following posterior fossa surgery characterized by temporary loss of speech and communicati...

Downward displacement of the cerebellar tonsils through the foramen magnum, potentially compressing the brainstem.

Midline structure of the cerebellum connecting the two hemispheres, critical for balance and coordination.

A neurosurgical procedure to redirect cerebrospinal fluid flow when normal pathways are obstructed or impaired.

Abnormal escape of cerebrospinal fluid through a defect in the dura mater or skull base.

Abnormal drainage of cerebrospinal fluid from the ear, typically following skull base trauma or surgery.

Leakage of cerebrospinal fluid through the nose, often following skull base surgery or trauma.

Congenital condition where cerebellar tissue extends below the skull into the spinal canal.

Surgical technique for draining cerebrospinal fluid from basal cisterns to reduce intracranial pressure.

Surgical procedure involving division of the corpus callosum to treat severe epilepsy.

Intraoperative technique to identify functional brain areas to guide safe tumor resection and avoid neurological deficit...

Surgical reconstruction of skull defects using autologous bone, synthetic materials, or allografts.

Premature fusion of one or more cranial sutures in infants, leading to abnormal skull shape and potential brain growth r...

Surgical procedure involving the removal of a portion of the skull to access the brain.