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Flashcards in Path V Deck (50):
1

what is the ring around infarcts seen microscopically around 2-3 weeks after incident

grnaulation tissue

2

what is the syndrome called with posterior inferior cerebellar artery syndrome

lateral medullary syndrome
wallenberg

3

Sx lateral medullary sydrome

loss of pain and temp on contra side
ipsi face
diagnostic!!!!!!!

4

what tract is damaged in lateral medullary syndrome causing loss of pain and temp to contra body

spinothalamic tract

5

what part of brain is damaged in lateral medullary syndrome that causes ataxia

cerebellum or inferior cerebellar peduncle

6

what fibers can be damaged in lateral medullary syndrome that lead to horner like signs

hypothalamiospinal fibers

7

what nuclei involvement can cause nystagmus vertigo and nausea and vomiting

deiters nucleus and vestibular nuclei

8

what is a very bad complicaiton lateral medullary syndrome

increased P in posterior fossa that can cause tonsillar herniation affecting the respiratory center

9

what causes the fatal gastroeneteritis with lateral medullary syndrome

if vesticular and deitersnuclei involved

10

onset lateral medullary syndrome assoc with what

severe vertigo

11

widespread white matter hemorrhages

bone marrow embolization

12

what can cause bone marrow embolizaiton

long bone fractures cause embolie

13

widespread white matter hemorrhages are seen in bone marrow embolization and what type

fat emboli
like in burn patient

14

TIA

transient ischemic attack

15

TIA lasts how long

1 hr leaves small infarcts

16

TIA important warning sign for what

stroke

17

majority strokes caused by

HTN, antigoagulatns, subarachnodi hemorrhage

18

HTN causes hemorrhage where

basalganglia area and thalamus and pons!

19

hemorrhagic stroke occurs in what aa

lenticulostriate and recurrent a of heubner
both from MCA

20

why do many patients with same stroke origination present differently

collateral circulation

21

striatum

caudate and putamen

22

lentiform nucleus

putamen and globus pallidus

23

recurrent a of heubner suplies what

caudate head and ant putamen and globus pallidus

24

all inputs basal ganglia arrive via what

striatum and nuc accumbens

25

outputs of basal ganglia leav how

internal segment globus palludus
close to substantia nigra pars reticulata

26

basal ganglia control what

general motor control
eye movements
cognitive functions
emotional functions

27

pure motor stroke

contra pons or internal capsule

28

pure sensory stroke

contra thalamus

29

MCA syndrome

hemiparesis face and arm >leg
aphasia
sensory loss
hemianopia
eye deviation

30

ACA syndrome

lower extremity weakness, sensory loss, incontinence

31

PCA syndrome

homonymous hemianopia
sensory loss

32

imaging more sensitive to Dx small ischemic areas

MRI
but not as fast

33

what imaging is used to evaluate carotid aa and heart as sources of embolus

US

34

Tx TIA

preservation of tissue in penumbra
t-PA and recanalizaiton if embolus
watch for inc intracranial P

35

jet bleed into brain tissue

subarachnoid hemorrhage

36

where do intracranial aneurysms form

where there are gaps in media and internal elastica

37

majority berry aneurysms

circle of willis and 1st bifurcation MCA

38

if find one berry sneurysm must do what

look for others

39

patients at increased risk for intracranial aneurysms

W>M
coarctation aorta (marfans)
polycystic kidney disease since ciliopathy
smoking and alcohol

40

what are arteriovenous malformations

aa and vv proliferation
inc risk of bleeding

41

what can occur intracranially in sturge weber syndrome

abnormal vessels in the subarachnoid space
can cause microcalcifications that cause seizures and neuro deficits

42

hemangioma in opthalmic division V

sturge weber

43

hypertensive encephalopathy

severe HA, nausea, vomiting, papilledema, visual disturbances, seizures, confusion and coma

44

fibrinoid necrosis small a

hypertensive encephalopathy

45

cerebral amyloid angiopathy

deposition of beta amyloid into small vessels
congo red +

46

cerebral amyloid angiopathy assoc with what

alzheimers because AD also deposits amyloid beta

47

what type of hemorrhage in Cerebral amyloid angiopathy

lobar

48

what phenotype assoc with cerebral amyloid angiopathy

ApoE

49

what stain for CAA

beta amyloid immunostain

50

the ischemic lesions in CAA can cause what clinical featues

dementia