Nb3 Cerebrovascular Pathology

Front 1

If the ECA or CCA is occluded which arteries will have diminished pulses

What if the occulsion is in the ICA before the ophthalmic artery?

Back 1

Facial, preauricular, superficial temporal

same arteries would have increased pulse

Front 2

Lesions in this territory affect leg instead of arm and face

Back 2

ACA territory

Front 3

Lesions in this territory affect the face and arm over the leg

Back 3

MCA territory

Front 4

Describe the division of a cerebral artery that serves Broca's area and another for Wernicke's area

Back 4

MCA superior division- Broca's
MCA inferior division- Wernicke's

Front 5

Amaurosis fugax describes___

What is the likely underlying cause?

Back 5

transient monocular blindness due to retinal ischemia

highly correlated with ipsilateral carotid stenosis

Front 6

What does alien hand syndrome suggest

Back 6

lesion of the contralateral supplementary motor cortex

likely from ACA infarct

Front 7

A dissection of the internal carotid artery that causes a thromboembolism to the MCA may cause a disruption of ___

Back 7

the superior cervical ganglion resulting in Horner's syndrome

Front 8

Lacunar infarcts in the posterior limb of the internal capsule would cause

Back 8

pure motor hemiparesis

Front 9

Medial Pontine Lacunar syndromes are due to infarcts in this blood supply

Back 9

ventral penetrating branches of basilar

Front 10

Dysarthria-clumsy hand syndrome likely arises from occlusion in this artery affecting what brain region?

Back 10

Occlusions in the ventral penetrating branches of basilar, medial pontine lacunar syndrome

Front 11

A clinical sign of diplopia leads you to think of posterior or anterior circulation problems?

Back 11

Posterior

Front 12

Name 3 important localizations for lesions that cause altered alterness

Back 12

Upper brainstem reticular formation
Bilateral cerebral cortex
Bilateral thalamus

Front 13

3 important branches of P1 and what they supply

Back 13

Interpeducncular- supplies medial midbrain
Thalamoperforators- inferior/medial/anterior thalamus
Thalamogeniculates- lateral geniculate central and posterior thalamus

Front 14

A pure sensory stroke could be cuased by lacunar infarcts due to occlusion of the

Back 14

thalamoperforators serving the thalamus

Front 15

Alexia without agraphia is typically a lesion that involves the

Back 15

visual cortex and extends into the splenium of the corpus callosum, visaul info from both hemispheres cannot reach the language center

Front 16

Cortical branches of PCA supply these 2

Back 16

Inferomedial temporal lobe (could cause memory defect)

Medial occipital lobe (visual cortex)

Front 17

What happens to optokinetic nystagmus with a lesion of the parietal lobe

Back 17

there is a loss of OKN when moving stimulus moving toward side of lesion

Front 18

What happens to optokinetic nystagmus with a frontal lobe lesion

Back 18

tonic deviation in direction of target, no fast phase correction

Front 19

A decreased left-beating fast phase when OKN strip is moved to the right indicates a lesion where

Back 19

right frontal lobe

Front 20

Clinical signs of an ACA-MCA watershed infarct

Back 20

Proximal arm and leg weakness (man in a barrel)

Front 21

Watershed infarct of MCA-PCA territory

Back 21

disturbances of higher order visual processing

Front 22

Watershed infarct in the dominant hemisphere are associated with

Back 22

transcortical aphasia

Front 23

UMN signs in the left leg should lead you to think of an occlusion in which artery?

Back 23

Right ACA

Front 24

Right homonymous hemianopia leads you to think of an occlusion in which artery

Back 24

Left PCA

Front 25

Right arm dysmetria leads you to think of an infarct in which brain region

Back 25

right cerebellum

Front 26

The mechanism behind lesions in multiple vascular territories (ant and post) is likely-

Back 26

cardiogenic embolism

Front 27

Vertebral dissection usually results in this syndrome

Back 27

Lateral Medullary Syndrome