Brain Infarcts Flashcards

1
Q

PICA - Lateral Medullary Syndrome (Wallenburg)

A
Spinal Trigeminal: Ipsi pain/temp (face)
Anterolateral: Contral pain/temp (body)
Nucleus Ambiguous: CN X deficits
Vestib Nuc. + Inf. Cerebellar Peduncle: Ipsi Ataxia, nystagmus
Descending Sympathetics: Ipsi Horner
Solitary Nuc/Tract: Ipsi taste loss
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2
Q

ASAs + Paramedian from Vertebral - Medial Medullary Syndrome

A

Pyramidal Tract: Contra arm/leg weakness
Medial Lemniscus: Contra loss of prop., discrim., vib.
Hypoglossal Nuc/Nerve: Ipsi tongue weakness (lick wound)

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3
Q

Paramedian Branch of Basilar (medial pons)

A

Corticospinal/Corticonuclear Contra leg, arm, face weakness
Abducens Nuc: Ipsil horizontal gaze palsy
Medial Lemniscus: Contra prop., vib, discrim
Facial Nerve/Colliculus: Ipsi face weakness
MLF: Internuclear opthalmoplegia (nystagmus in contra eye, loss of adduction of ipsi eye, when gazing contra lesion)

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4
Q

AICA (lateral caudal pons)

A

Mid cerebellar Peduncle: Ipsi ataxia
Vestib. nuc: Vertigo, nystagmus
Trigem Nuc/tract: Ipsi pain/temp (face)
Spinothalamic: Contra pain/temp (body)

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5
Q

Superior Cerebellar Artery SCA (dorsolateral rostral pons)

A

Superior Cerebellar Peduncle + Cerebellum: Ipsi ataxia

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6
Q

PCA Branches + Top of Basilar Artery - Weber’s (anterior-medial midbrain)

A

Occulomotor Nerve Fascicles: Ipsi CN III palsy

Cerebral Peduncle: Contrala hemparesis

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7
Q

PCA Branches + Top of Basilar Artery - Claude’s (tegmentum of pons)

A

Occulomotor Nerve: Ipsi CN III palsy

Red Nuc/Superior Cerebellar Peduncle: Contra ataxia

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8
Q

MCA - Left Superior

A

UMN weakness of right arm/face
Broca’s aphasia
Somatosensory deficits of right arm/face/trunk

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9
Q

MCA - Left Inferior

A

Wernicke’s aphasia
Somatosensory loss of right arm/face/trunk
Right visual field deficit
Possible right weakness, at onset

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10
Q

MCA - Left Deep

A

Right pure motor hemiparesis (UMN)

Aphasia

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11
Q

MCA - Left Stem

A

Sup+Inf+Deep

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12
Q

MCA - Right Superior

A

UMN weakness of arm/face
Left Hemineglect
Somatosensory of left arm/face/trunk

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13
Q

MCA - Right Inferior

A

Pronounced left hemineglect (normal strength)
Left visual field deficit
Somatosensory deficits of left arm/face/trunk
Right gaze preference (onset)

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14
Q

MCA - Right Deep

A

UMN pure motor hemiparesis

Left hemineglect

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15
Q

ACA - Left

A
UMN right leg weakness
Right leg sensory loss
Grasp reflex
Frontral lobe - odd behavior
Aphasia, right hemiplegia possible
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16
Q

ACA - Right

A
UMN left leg weakness
Left leg sensory loss
Grasp reflex
Frontal lobe - odd behavior
Possible hemineglect, left hemiplegia
17
Q

PCA - Left

A

Right homonymous hemianopsia
If reaches CC splenium: Alexia
If reaches thalamus/internal capsule: Aphasia, right sensory loss, hemiparesis

18
Q

PCA - Right

A

Left homonymous hemianopsia

If reaches thalamus/internal capsule: Left hemisensory loss, hemiplegia

19
Q

ACA-MCA Watershed (Coronal, Transverse 2:00)

A

Transcortical Motor Aphasia: Impaired fluency, normal comprehension

20
Q

MCA-PCA Watershed (Coronal, transverse 5:00)

A

Transcortical Sensory Aphasia: Normal fluency, impaired comprehension

21
Q

Mixed transcortical aphasia

A

Impaired fluency/comprehension

ACA-MCA + MCA-PCA watershed infarcts