Anatomic Localization in Stroke
Signs and Symptoms Cerebral Hemisphere, Lateral Aspect (Middle Cerebral A.) |
| Hemiparesis |
| Hemisensory deficit |
| Motor aphasia (Broca's)—hesitant speech with word-finding difficulty and preserved comprehension |
| Sensory aphasia (Wernicke's)—anomia, poor comprehension, jargon speech |
| Unilateral neglect, apraxias |
| Homonymous hemianopia or quadrantanopia |
| Gaze preference with eyes deviated toward side of lesion |
| Cerebral Hemisphere, Medial Aspect (Anterior Cerebral A.) |
| Paralysis of foot and leg with or without paresis of arm |
| Cortical sensory loss over leg |
| Grasp and sucking reflexes |
| Urinary incontinence |
| Gait apraxia |
| Cerebral Hemisphere, Posterior Aspect (Posterior Cerebral A.) |
| Homonymous hemianopia |
| Cortical blindness |
| Memory deficit |
| Dense sensory loss, spontaneous pain, dysesthesias, choreoathetosis |
| Brainstem, Midbrain (Posterior Cerebral A.) |
| Third nerve palsy and contralateral hemiplegia |
| Paralysis/paresis of vertical eye movement |
| Convergence nystagmus, disorientation |
| Brainstem, Pontomedullary Junction (Basilar A.) |
| Facial paralysis |
| Paresis of abduction of eye |
| Paresis of conjugate gaze |
| Hemifacial sensory deficit |
| Horner's syndrome |
| Diminished pain and thermal sense over half body (with or without face) |
| Ataxia |
| Brainstem, Lateral Medulla (Vertebral A.) |
| Vertigo, nystagmus |
| Horner's syndrome (miosis, ptosis, decreased sweating) |
| Ataxia, falling toward side of lesion |
| Impaired pain and thermal sense over half body with or without face |