[qdeck]

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Falcine Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Displacement of cingulate gyrus under falx cerebri

2. Leg weakness (contralateral) 

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Midline Shift

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Midline shift of septum pellucidum

2. Decreased level of consciousness, proportional to degree of shift

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Uncal Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Uncus and medial temporal lobe displaced medially.
Effacement of supracellar cistern
Hippocampus obliteratese the quadrigeminal cistern
Midbrain effaced and displaced laterally

2. Ipstilateral fixed dilated pupil (CNIII palsy)
Decreased level of consciousness
Hemiparesis
Cortical blindness (homonymous hemianopia)

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Central Tentorial Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1.Obliteration of basal subarachnoid cisterns
Increased brainstem saggital diameter
Inferior displacement of basilar artery

2. Coma
Diabetes Insipidus
Parinaud’s syndrome 

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Tonsillar Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Cerebellar tonsil below the foramen magnum

2. Coma
Apnoea
Hypertension 

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Upward Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Flattened quadrigeminal cistern
“Spinning top” midbrain
Hydrocephalus

2. Coma
Miosis (reactive)
Absent or asymmetrical doll’s eye
Decerebrate posturing 

[q unit=”Neurology” topic=”Cerebral_Herniation_Syndromes”] Transcalvarial Herniation

1. Structures involved and Radiological features
2. Clinical features

[a] 1. Depends on where the defect is

2. Depends on where the defect is

[/qdeck]