Herniations Flashcards
1
Q
Tonsillar Herniation
A
Displacement of cerebellar tonsils into the foramen magnum.
They compress the brainstem and cause cardiopulmonary arrest
2
Q
Subfalcine herniation
A
Involves displacement of the cingulate gyrus under the falx cerebri (falx cerebri separates the two hemispheres)
Compresses the anterior cervical artery
3
Q
Uncal Herniation
A
Uncus of temporal lobe under the tentorium cerebelli
- compresses cranial nerve III and leads to down and out pupil
- posterior cerebral artery compression leads to infarction of occipital lobe
- Paramedian artery rupture leads to Duret hemorrhage.
4
Q
Hydrocephalus causes in a baby
A
- Intraventricular matrix hemorrhage
- Arnold Chiari
- Dandy Walker
- Spina Bifida
5
Q
Hydrocephalus in an older children
A
Tumor, infection
6
Q
In an ault, hydrocephalus causes
A
subarachnoid hemorrhage, tumor
