Term
| What is dysraphism with regards to the neural tube? |
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Definition
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Term
| What is the most common neural tube abnormality? |
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Definition
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Term
| What type of spina bifida is an outpouching of just subarachnoid and arachnoid? |
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Definition
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Term
| What is myeningomyelocele? |
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Definition
| both arachnoid and spinal cord outside of spinal canal |
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Term
| What should one be concered about with a congential dural sinus? |
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Definition
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Term
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Definition
| the spina bifida equivalent of the brain in which the brain is enclosed in a sac outside the skull |
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Term
| What is it called when the brain does not completely form and is completely exposed? |
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Definition
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Term
| What is the name for the pathologic changes seen in anencephaly in which there is a red area with disorganized tissue? |
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Definition
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Term
| What is the name given to the deformitiy in which the prosencephalon does not divide into two cerebral cortex? |
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Definition
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Term
| What trisomies is holoprosencephalon associated with? |
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Definition
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Term
| What other malformations are common in holoprosencephaly? |
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Definition
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Term
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Definition
| cyst formation due to lack of brain tissue |
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Term
| What is an abnormal forebrain formation defect that resembles hydrocephalus ex vacuo with failure of formation of brain tissue resulting in hydrocephalus? |
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Definition
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Term
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Definition
| A lack of gyri and sulci creating a smooth like surface of the brain |
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Term
| What protein is lissencephaly associated with? |
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Definition
| Microtubule assocated protein LIS-1 |
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Term
| What malformation of the nervous system is assocated with microtubule assocated protein LIS1? |
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Definition
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Term
| What is the malformation described by small folds in surface of brain that resemble little gyri? |
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Definition
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Term
| What is heterotropic cortex? |
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Definition
| cortex formed in the wrong place due to improper migration |
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Term
| What four defects are assocated with Arnold-Chiari SYndrome? |
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Definition
elongation of 4th ventricle
elongation of medulla
flattening and beaked colliculi (quadtrigeminal plate)
herniation of the vermis of the cerebellum |
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Term
| What is Arnold-Chiari often assocated with? (2) |
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Definition
| spina bifida and hydrocephalus |
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Term
| What two characteritics make up the Dandy-Walker malformation? |
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Definition
no vermis
expanded cystic 4th ventricle |
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Term
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Definition
| a cavity in the spinal cord |
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Term
| What is the name given to a cavity in the spinal cord? |
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Definition
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Term
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Definition
| a termed used to describe neurologic deficiet soon after birth that does NOT get worse |
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