| II. Symmetrical, structural |
| Supratentorial |
| Bilateral internal carotid occlusion |
| Bilateral anterior cerebral artery occlusion |
| Sagittal sinus thrombosis |
| Subarachnoid hemorrhage |
| Thalamic hemorrhage* |
| Trauma-contusion, concussion* |
| Hydrocephalus |
| Infratentorial |
| Basilar occlusion* |
| Midline brainstem tumor |
| Pontine hemorrhage* |
| Central pontine myelinolysis |
| III. Asymmetrical, structural |
| Supratentorial |
| Thrombotic thrombocytopenic purpura¶ |
| Disseminated intravascular coagulation |
| Nonbacterial thrombotic endocarditis (marantic endocarditis) |
| Subacute bacterial endocarditis |
| Fat emboli |
| Unilateral hemispheric mass (tumor, abscess, bleed) with herniation |
| Subdural hemorrhage bilateral |
| Intracerebral bleed |
| Pituitary apoplexy¶ |
| Massive or bilateral supratentorial infarction |
| Multifocal leukoencephalopathy |
| Creutzfeldt-Jakob disease |
| Adrenal leukodystrophy |
| Cerebral vasculitis |
| Cerebral abscess |
| Subdural empyema |
| Thrombophlebitis¶ |
| Multiple sclerosis |
| Leukoencephalopathy associated with chemotherapy |
| Acute disseminated encephalomyelitis |
| Infratentorial |
| Brainstem infarction |
| Brainstem hemorrhage |
| Brainstem thrombencephalitis |
