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14 Cards in this Set
- Front
- Back
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most common cause of brain malformations
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abnormal neuronal migration
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how do physical lesions (ex. hemorrhage) interfere w/ migration
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by disrupting radial glia fibers
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Porencephaly anatomic defect
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cavity that communicates from subarachnoid space to ventricular system
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the term porencephaly is used to describe what radiological finding
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big hole in cerebral hemisphere
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_ is porencephaly w/ complete division of 1 hemisphere
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Schizencephaly
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Schizencephaly cause
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stroke that cause to not develop -> gray matter present from surface to ventricle
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presentation of Schizencephaly
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seizures
sometimes normal development strokes that happen later have better prognosis |
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lissencephaly refers to
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smooth brain - absence of sulci, gyri and normal cortical architectuer
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when does a fetus develop sulci and gyri
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mid 20th wks
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lissencephaly brain has how many layers
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4 instead of 6
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outcome of lissencephaly
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seizures
not much else |
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pachgyra anatomical abnormality
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thick gryi
no sulci architectural abnormality in that cortex is generally thickened and the alignment of neurons is deranged |
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cortical heterotopia anatomic abnormality
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gray matter in wrong area
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SX of cortical heterotopia
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seizures
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