lezione 13

In which phase of stroke can a CT scan appear as shown in the figure? (13). a) less than one month, more than 15 days from onset. b) subacute. c) less than 1 hour from onset. d) hyperacute.

In what order of frequency would you rank ischemic strokes by vascular territory? (13). a) MCA, PCA, ACA. b) PCA, MCA, ACA. c) ACA, MCA, PCA. d) they are all equally frequent.

Which artery supplies the supplementary motor area? (13). a) anterior cerebral artery. b) posterior cerebral artery. c) recurrent artery of Heubner. d) middle cerebral artery.

Which symptom most frequently coexists with Broca’s aphasia due to vascular causes? (13). a) contralateral hemiplegia. b) right homonymous lateral hemianopia. c) left homonymous lateral hemianopia. d) ipsilateral hemiplegia.

Infarction of which artery can cause contralateral paralysis of the lower limb? (13). a) anterior choroidal artery. b) anterior cerebral artery. c) all of the above. d) middle cerebral artery.

Which vascular region is most commonly associated with intracerebral intraparenchymal hemorrhages? (13). a) PCA. b) superior cerebellar artery. c) ACA. d) perforating branches of the middle cerebral artery.

How may the CT scan appear in a hyperacute ischemic stroke?(13). a) never normal. b) normal. c) always with focal hypodensity. d) always with focal hyperdensity.

Which of the following brain areas is not supplied by the posterior cerebral artery? (13). a) head of the caudate. b) thalamus. c) calcarine cortex. d) fusiform gyrus.

Which of the following arteries does not supply the internal capsule? (13). a) perforating branches of the anterior cerebral artery. b) perforating branches of the middle cerebral artery. c) anterior choroidal artery. d) posterior cerebellar artery.

A chronic-phase stroke on CT scan shows... (13). a) scar tissue but with normal density. b) tissue loss replaced by CSF. c) leopard-spot hyperdensities. d) tissue loss replaced by hyperintense scar tissue.

Which of these symptoms would you associate with a stroke of the anterior cerebral artery? (13). a) contralateral lower limb paralysis. b) motor perseverations. c) all of the symptoms listed are plausible. d) lack of initiative.

Lesion of which branches of the middle cerebral artery may cause visual field deficits? (13). a) Rolandic artery. b) in no case. c) posterior branches. d) anterior branches.

Infarction of which artery most frequently leads to unilateral spatial neglect? (13). a) right middle cerebral artery. b) left middle cerebral artery. c) right anterior cerebral artery. d) left anterior choroidal artery.

In which vascular territory is the lesion in the figure located? (13). a) posterior trunk of the middle cerebral artery. b) anterior and posterior cerebral arteries. c) common trunk of the middle cerebral artery. d) anterior trunk of the middle cerebral artery.

Infarction of which artery most frequently results in Broca’s aphasia? (13). a) left middle cerebral artery, common trunk. b) left middle cerebral artery, posterior branches. c) all listed infarcts may present with Broca’s aphasia. d) left middle cerebral artery, anterior branches.