Different herniation syndromes
| Types | Anatomy | Exam Findings |
|---|---|---|
| Uncal (lateral transtentorial) | Inferior displacement of medial temporal lobe (uncus) past free edge of tentorium cerebelli | Ipsilateral oculomotor nerve palsy, posterior cerebral artery infarction Kernohan’s notch phenomenon |
| Subfalcine | Cingulate gyrus forced under falx cerebri | Behavioral changes Contralateral leg weakness Anterior cerebral artery infarction |
| Central (transtentorial) | Progressive downward displacement of diencephalon and brain stem | Rostral to caudal progression of brain stem dysfunction |
| Tonsillar | Downward displacement of cerebellar tonsils through foramen magnum | Medullary dysfunction Cardiorespiratory arrest |
