HYDROCEPHALUS Flashcards
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OBSTRUTIVE HYDROCEPHALUS
- most common cause?
- what to suspect of hydroc. in children
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REMEMBER colloid cyst DOESNT ENHANCE!!!
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AQUEDUCTAL STENOSIS:
-acquired causes?
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Extrinsic compression
tectal plate glioma / pineal tumour / posterior fossa tumour / cerebral vascular malformation
Intrinsic stenosis
infection: meningitis/ventriculitis
subarachnoid haemorrhage (SAH)
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AQUEDUCTAL STENOSIS:
-congenital causes?
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congenital causes:
aqueductal webs or diaphragms / gliosis
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TECTAL GLIOMAS
major points
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4TH VENT OBSTRUCTION:
-causes?
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Regarding EPENDYMOMA, remember:
- coarse calcification is common (50%)
- cystic areas (50%)
- solid component iso- to hypodense
- heterogeneous enhancement
- variable haemorrhage
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OBSTRUCTIVE COMMUNICATING HYDROCEPHALUS:
-causes?
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NORMAL PRESSURE HYDROCEPHALUS:
- what is it?
- previous conditions that can be associated?
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NORMAL PRESSURE HYDROCEPHALUS:
-major points?
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SLIT VENTRICULE SYNDROME
-what is it?
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HOLOPROSENCEPHALY:
- what is?
- common teratogenes?
- always associated with which clinical finding?
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ALOBAR HOLOPROSENCEPHALY:
-major points?
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SEMILOBAR HOLOPROSENCEPHALY:
-major points?
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