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Posterior limb of internal capsule (lacunar infarct) Contralateral motor impairment without any higher cortical dysfunction and visual field abnormalities
Middle cerebral artery occlusion Contralateral hemiplegia, conjugate eye deviation toward side of infarct, hemianesthesia, homonymous hemianopia, aphasia (dominant hemisphere), hemineglect (non-dominant hemisphere)
Anterior cerebral artery occlusion Contralateral weakness that predominantly affects the lower extremity, abulia, akinetic mutism, emotional disturbances, deviation of head and eyes toward the lesion, sphincter incontinence
Vertebrobasilar system lesion ‘Alternate’ syndromes, with contralateral hemiplegia and ipsilateral cranial nerve involvement
Lacunar infarction in the posterior limb of the internal capsule Unilateral motor deficit (face, arm, and, to a lesser extent, leg); mild dysarthria; NO sensory, visual or higher cortical dysfunction
Lacunar infarction in the ventroposterolateral nucleus of the thalamus Unilateral numbness, paresthesias, and hemisensory deficit involving the face, arm, trunk, and leg
Lacunar infarction in the posterior limb of the internal capsule Weakness that is more prominent in the lower extremity, along with ipsilateral arm and leg incoordination
Lacunar stroke at the basis pontis Hand weakness, mild motor aphasia, NO sensory abnormalities
Dominant frontal lobe stroke Broca’s (expressive or motor) aphasia and unilateral motor deficit ranging from hemiparesis to arm weakness
Non-dominant frontal lobe stroke Unilateral motor deficit ranging from hemiparesis to arm weakness without aphasia
Dominant parietal lobe Dysgraphia, dyscalculia and right/left confusion
Nondominant parietal lobe Construction apraxia, contralateral neglect and anosognosia
Dominant temporal lobe stroke Wernicke’s (receptive) aphasia
Occipital lobe stroke Visual disturbances
Medial medullary syndrome/occlusion of the vertebral artery Contralateral paralysis of the arm and leg, contralateral loss of tactile, vibratory, and position sense, and tongue deviation to the injured side
Lateral midpontine syndrome Impaired sensory and motor function of CN V (the trigeminal nerve) and limb ataxia
Medial midpontine syndrome Ipsilateral limb ataxia, contralateral eye deviation, and paralysis of the face, arm, and leg; variable impairment of touch and position sense
Lateral medullary lesion/Wallenberg syndrome Loss of pain and temperature sensation on the contralateral side of the body, loss of pain and temperature sensation of the face, ipsilateral Horner syndrome, weakness of the palate, pharynx, and vocal cords, and cerebellar ataxia
Central midbrain lesion/Weber's syndrome, Benedikt's syndrome, Claude's syndrome, Nothnagel's syndrome or Parinaud's syndrome Oculomotor paresis and other abnormalities of CN III function; variable cerebellar ataxia and contralateral hemiplegia
Occlusion of the ACA Contralateral weakness in the leg>arm and sensory loss leg>arm; variable urinary incontinence, confusion, and behavioral disturbances
Occlusion of the MCA in the dominant hemisphere Contralateral hemiplegia, hemisensory loss, aphasia, and homonymous hemianopia with eyes deviated toward the cortical lesion
Occlusion of the MCA in the non-dominant hemisphere Contralateral hemiplegia, hemisensory loss, and homonymous hemianopia with eyes deviated toward the cortical lesion; preserved speech, comprehension with confusion, and apraxia with spatial and constructional deficits
Occlusion of the PCA Contralateral homonymous hemianopia, visual hallucinations, and agnosias
Occlusion of the penetrating branches of the PCA Ipsilateral CN III palsy with contralateral hemiplegia (Weber syndrome) or ipsilateral CN III palsy with contralateral ataxia or athetosis (Benedikt syndrome)
Occlusion of the paramedian branches of the basial artery “Locked-in syndrome” presenting as quadriparesis with intact vertical eye movements
Occlusion of the posterior inferior cerebellar artery Wallenberg syndrome, presents as ipsilateral facial sensory loss, contralateral body sensory loss, vertigo, ataxia, dysarthria, dysphagia, and Horner syndrome
Occlusion of the major cerebellar arteries Vertigo, vomiting, nystagmus, and ipsilateral limb ataxia
Created by: megankirch