This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': "All are features of Wallenberg's syndrome, Except: \nSelect and explain. \nA. Ipsilateral loss of pain and temperature, B. Ipsilateral loss of taste sensation, C. Ipsilateral loss of posterior column sensations, D. Ipsilateral involvement of lower cranial nerves", 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer is A (Ipsilateral loss of pain and temperature): Pain and temperature sense are lost over opposite side of lesion due to involvement of spinothalamic tract. Symptom Pain numbness, impaired sensation over half the face Nystagmus, diplopia, oscillopsia, veigo, nausea vomiting Dysphagia hoarseness, paralysis of palate, paralysis of vocal cord (lower cranial nerve involvement) Ataxia, fall of side of lesion Loss of taste Homer's syndrome Numbness of ipsilateral arm, trunk & leg", 'role': 'assistant'}]