A 59-year-old hypertensive man presents with sudden-onset pure motor weakness of the left face, arm, and leg. Vital signs show BP 168/94 mmHg, HR 88/min, RR 16/min, temperature 37.2°C, SpO2 98% on room air. He denies aphasia, sensory loss, or visual field deficits. Brain MRI demonstrates acute ischemic changes in the right internal capsule. Which of the following is the most likely site of infarction?
- A)Posterior limb of the internal capsuleGABARITO
- B)Cerebellar vermis
- C)Lateral medulla
- D)Temporal lobe
- E)Occipital cortex
Explicação
Posterior limb of the internal capsule is the correct answer because a lacunar infarct of the lenticulostriate vessels can cause pure motor hemiparesis without cortical signs in patients with chronic hypertension. Ver explicação completa e trilha adaptativa →