Brain

Gliosis

Gitter Cell Reaction

Acute Neuronal Injury

Chiari type I malformation

Chiari type II malformation

Alzheimer Disease

Pick Disease

Progressive Supranuclear Palsy (PSP)

Corticobasal Degeneration (CBD)

Vascular Dementia

Ischemia and infarction

Raised intracranial pressure and herniation

Hydrocephalus

Hypertensive Cerebrovascular Disease

Epidural hematoma

Subdural hematoma

Germinal matrix intraventricular hemorrhage

Diffuse axonal injury

Neural tube defects

Viral meningoencephalitis

HSV-1 encephalitis

HIV encephalitis

Progressive Multifocal Leukoencephalopathy (PML)

Thiamine (B1) Deficiency

B12 Deficiency

Central Pontine Myelinolysis

Tay-Sachs Disease

Multiple Sclerosis

Acute Disseminated Encephalomyelitis (ADEM)

Acute Necrotizing Hemorrhagic Encephalomyelitis (ANHE)

Radiation Effects

Astrocytoma

Oligodendroglioma

Ependymoma

Meningioma

Craniopharyngioma

Medulloblastoma

Neuroblastoma

Hemangioblastoma

Astroblastoma

Atypical Teratoid/Rhabdoid Tumour (ATRT)