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Neuropathology Glossary

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

neuronal loss

Intermediate Technical IVT

Reduction in the number of neurons in brain tissue, a key feature of neurodegenerative diseases.

Showing 73–96 of 100

A neuronal migration disorder characterized by clusters of ectopic neurons lining the lateral ventricles due to failed r...

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Pick body

Advanced Technical IVT

Tau-containing cytoplasmic inclusions characteristic of Pick's disease and frontotemporal dementia.

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pilocytic astrocytoma

Intermediate Technical IVT

A WHO grade I astrocytic tumor characterized by bipolar cells with long hair-like processes.

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psammoma body

Intermediate Technical IVT

Concentric calcified structures found in certain brain tumors, particularly meningiomas.

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pseudolaminar necrosis

Advanced Technical IVT

Selective neuronal loss in specific cortical layers following hypoxic-ischemic injury, creating false laminar patterns.

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pseudopalisading

Advanced Technical IVT

Arrangement of elongated cell nuclei around areas of necrosis, characteristic of glioblastoma.

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reactive astrocyte

Intermediate Technical IVT

Activated astrocytic cell showing morphological and molecular changes in response to CNS injury or disease.

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reactive gliosis

Intermediate Technical IVT

A pathological response involving proliferation and hypertrophy of glial cells following brain injury or disease.

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Rosenthal fiber

Intermediate Technical IVT

Eosinophilic cytoplasmic inclusions in astrocytes, characteristic of pilocytic astrocytomas and Alexander disease.

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satellitosis

Advanced Technical IVT

Clustering of glial cells around neurons, typically indicating neuronal injury or disease.

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schwannoma

Intermediate Technical IVT

Benign nerve sheath tumor arising from Schwann cells, most commonly affecting cranial and peripheral nerves.

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SNAP-25

Professional Technical IVT

Synaptosomal-associated protein of 25 kDa, used as a presynaptic marker in neuropathological studies.

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spongiform change

Professional Technical IVT

Characteristic vacuolar degeneration of neuropil creating a sponge-like appearance in prion diseases.

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spongiform degeneration

Advanced Technical IVT

Pattern of tissue damage creating a sponge-like appearance due to vacuole formation in neuropil.

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status spongiosus

Advanced Technical IVT

Severe vacuolar degeneration of neuropil creating a sponge-like appearance, typically seen in prion diseases.

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subacute combined degeneration

Advanced Technical IVT

Spinal cord pathology involving both posterior columns and lateral corticospinal tracts, typically associated with vitam...

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A progressive demyelinating disease caused by persistent measles virus infection of the CNS.

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Progressive white matter disease caused by chronic small vessel disease, also known as Binswanger disease.

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A WHO grade I tumor arising from subependymal nodules, typically associated with tuberous sclerosis.

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subpial gliosis

Intermediate Technical IVT

Reactive astrocytic proliferation immediately beneath the pial surface of the brain, often indicating cortical injury.

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tau protein

Intermediate Technical IVT

A microtubule-associated protein that forms pathological tangles in Alzheimer's disease and related neurodegenerative di...

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TDP-43

Professional Technical IVT

TAR DNA-binding protein 43, a pathological protein aggregate found in frontotemporal dementia and ALS.

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tigroid pattern

Intermediate Technical IVT

Distinctive striped appearance of neurons caused by prominent Nissl substance, often accentuated in certain pathological...

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torpedo

Advanced Technical IVT

Fusiform axonal swellings in Purkinje cell axons, characteristic of cerebellar pathology.

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Showing 73–96 of 100

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