This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': "Ipsilateral third nerve lesion and contralateral ataxia \nSelect and explain. \nA. Weber syndrome, B. Claude's syndrome, C. Wallenberg's syndrome, D. Parinaud syndrome", 'role': 'user'}, {'content': "Answer: B \nExplanation: A third nerve palsy with contralateral ataxia (Claude's syndrome) or with contralateral hemiplegia (Weber's syndrome)The constellation of veigo, numbness of the ipsilateral face and contralateral limbs, diplopia, hoarseness, dysahria, dysphagia, and ipsilateral Horner's syndrome is called the lateral medullary (or Wallenberg's) syndromeParinaud's syndrome Also known as dorsal midbrain syndrome, this is a distinct supranuclear veical gaze disorder caused by damage to the posterior commissure.Ref: Harrison 19e pg: 2575", 'role': 'assistant'}]