A 57-year-old woman with hypertension presents with sudden onset vertigo, vomiting, hoarseness, and dysphagia. Vital signs show BP 168/94, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Examination reveals right-sided miosis and ptosis, loss of pain and temperature sensation on the right face and left body, and right vocal cord paralysis. MRI demonstrates acute infarction in the right medulla. She denies recent head trauma. Which artery is most likely occluded?
- A)Middle cerebral artery
- B)Anterior spinal artery
- C)Basilar artery
- D)Anterior inferior cerebellar artery
- E)Posterior inferior cerebellar arteryGABARITO
Explicação
Posterior inferior cerebellar artery is the correct answer because PICA infarction causes lateral medullary syndrome with nucleus ambiguus dysfunction producing dysphagia and hoarseness, plus ipsilateral facial and contralateral body pain-temperature loss. Ver explicação completa e trilha adaptativa →