A 61-year-old woman with hypertension presents with sudden-onset vertigo, vomiting, hoarseness, and dysphagia. Vital signs: BP 168/94 mmHg, HR 88, RR 18, temp 37.2°C, SpO2 98%. She reports decreased pain sensation on the right face and left body. Exam reveals right ptosis, miosis, and ipsilateral ataxia. MRI shows acute infarction in the medial brainstem. Cranial nerve examination is otherwise intact. Which artery is most likely occluded?
- A)Basilar artery
- B)Posterior inferior cerebellar arteryGABARITO
- C)Anterior spinal artery
- D)Lenticulostriate arteries
- E)Anterior inferior cerebellar artery
Explicação
Posterior inferior cerebellar artery is correct. Occlusion causes lateral medullary syndrome with dysphagia and hoarseness from nucleus ambiguus injury, ipsilateral facial pain and temperature loss, contralateral body pain and temperature loss, vertigo, ataxia... Ver explicação completa e trilha adaptativa →