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Flashcards in Path VII Deck (45)
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31

where is foramina of luschka

out of 4th ventricle

32

what can cause obstruction 3rd ventricle

craniopharyngioma, germ cell tumors

33

hydrocephalus ex vacuo

dilatation of ventricles from loss of brain tissue
alzhemiemrs, huntingtons, MS

34

idiopathic external hydrocephalus

usually resolves without Tx
infants
probably from immaturity of arachnoid villi

35

what can cause obstruction foramina of monro

colloid cysts, tuberous sclerosis

36

what can cause fibrosis subarachnoid space

meningitis, subarachnoid hemorrhage, meningeal dissemination of tumors

37

What is transependymal edema

pressure in ventricles push fluid through ependymal lining into periventricular white matter

38

what area is hit first with hydrocephalus

periventricular white matter, loses myelin and axons

39

Holoprocencephlay

absence of cleavage of forebrain between 4-6 weeks gestation

40

conditions assoc with holoprocencephaly

maternal DM, toxoplasmosis, syphilis, rubella, fetal alcohol syndrome, genetic

41

common chromosomal anomaly with holoprocencephaly

trisomy 13 Patau

42

what anomalies are assoc with agenesis of corpus callosum

arnold chiari (II)
dandy walker syndrome
andermann syndrome
schizencephaly

43

what is andermann syndrome

motor and sensory neuropathy
K Cl cotransporter

44

signs agenesis corpus callosum

asymptomatic
subtle perceptual deficitis
seizures
psychomotor retardation!

45

bat wings appearance of corpus callosum

agenesis