Contralateral hemiparesis, hemisensory loss, paresthesias, homonymous hemianopsia, and a bruit are features of which event?

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This set of symptoms points to transient ischemia in the anterior circulation supplied by the carotid arteries. Contralateral motor weakness and sensory loss come from involvement of the primary motor and sensory cortices, while a visual field loss (homonymous hemianopsia) can occur if the embolic or hypoperfusion event affects the optic radiations or nearby cortex in the territory supplied by the internal carotid/MCA. The carotid bruit is a strong clue pointing to carotid atherosclerosis with stenosis, a common source of TIAs in this distribution.

In contrast, basilar artery TIAs typically produce brainstem or cerebellar signs (dizziness, dysarthria, diplopia, ataxia) rather than a combination of motor and sensory hemispheric deficits with a visual field cut. Posterior circulation events share broader brainstem/cerebellar features and do not usually present with this exact combination plus a carotid bruit. Transient global amnesia presents with sudden-onset amnesia and no focal motor or sensory deficits.