Cortical Lobe Lesions Flashcards Preview

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Flashcards in Cortical Lobe Lesions Deck (8):
1

Causes of frontal lobe lesion

Head injury (trauma)
Cerebrovascular event - occlusion of MCA, ACA
Space occupying lesion
Frontotemporal dementia

2

Clinical features of frontal lobe lesions

Perseveration
Change of affect: apathetic/exuberant/uninhibited
Loss of abstract thought
Lack of spontaneous activity: unable to plan activities

3

Causes of parietal lobe lesions

Cerebrovascular event - MCA

4

Clinical features of parietal lobe lesion

Contralateral hemisensory loss
Contralateral homonymous lower quadrantanopia
Contralateral neglect syndrome: ignore halves of objects, ignore half of own body, despite normal visual field

5

Causes of temporal lobe lesion

Cerebrovascular event - MCA
Space occupying lesion
Trauma - extradural haematoma
Epilepsy
Frontotemporal dementia
Herpes simplex encephalitis

6

Clinical features of temporal lobe lesion

Disturbance in auditory perception
Disturbance in selective attention of auditory and visual input - short term memory loss
Disturbance in visual perception - prosopagnosia
Wernicke aphasia
Anterograde amnesia
Personality change
Contralateral homonymous superior quadrantanopia

7

Causes of occipital lobe lesion

Cerebrovascular event - PCA, MCA
Epilepsy

8

Presentation of occipital lobe lesion

Contralateral homonymous hemianopia with macular sparing