A 70-year-old man with hypertension presents with sudden-onset left arm and leg weakness and loss of left-sided proprioception. Vital signs: BP 168/95 mmHg, HR 88/min, RR 16/min, temp 37.2°C, SpO2 98% on room air. On examination, his tongue deviates rightward upon protrusion. Brain MRI shows acute restricted diffusion in the right midbrain. Cranial nerves II-XII are otherwise intact. Which vascular territory is most likely affected?
- A)Right middle cerebral artery infarct
- B)Basilar artery thrombosis
- C)Left anterior inferior cerebellar artery infarct
- D)Right posterior inferior cerebellar artery infarct
- E)Right anterior spinal artery infarct affecting the medial medullaGABARITO
Explicação
Right anterior spinal artery infarct affecting the medial medulla is the correct answer because medial medullary syndrome causes contralateral body weakness and proprioceptive loss with ipsilateral hypoglossal palsy, leading the tongue to deviate toward the le... Ver explicação completa e trilha adaptativa →