Neuropathology: Developmental

2. Appearance of brain with bilateral porencephaly
6. Common cause of structural brain abnormalities in the third trimester
8. Decreases incidence of neural tube defects
10. Failure of closure of the entire neural tube
11. Most severe form of holoprosencepahly
12. Risk factor for both germinal matrix hemorrhage and periventricular leukomalacia
13. Neuropore that closes first
14. Appearance of colliculi in Arnold-Chiari malformation
18. Neural tube defect that includes meninges but no cord
19. Defect in which ventricles directly communicate with subarachnoid space
20. Neurologic deficits in most cases of Arnold-Chiari malformation
21. Structure which is absent in Dandy-Walker malformation
25. Birth matrix of most neurons of the cerebrum
26. Disorder of this process results in gray matter heterotopia
27. Ischemic injury in periventricular white matter seen in premature infants
28. Increased risk of this in neural tube defects

1. First neural structure to form in development, neural
3. Malformation due to shallow posterior fossa
4. Most common neurologic manifestation in neuronal heterotopia
5. What the brain looks like in hydranencephaly
7. Brain abnormality due to failure of segmentation and cleavage
9. Lab test helpful in detecting neural tube defects
11. Germinal matrix blood vessels cannot do this, which results in bleeding
15. Appearance of posterior fossa in Dandy-Walker malformation
16. Severe malformation due to failure of close of the anterior neuropore
17. What happens to vermis in Arnold-Chiari malformation
18. Distribution of tissue necrosis in most cases of hydranencephaly
22. Non-progressive perinatal neurologic disorder with prominent motor deficits, cerebral
23. External appearance of brain in lissencephaly
24. Neurologic finding in arrhinencephaly