This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pathology
[{'content': 'Painless burn in hand is a characteristic feature of? \nSelect and explain. \nA. Thalamic syndrome, B. Syringomyelia, C. Cord compression, D. SLE', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' i.e. Syringomyelia * In Syringomyelia, there sensory deficit in upper extrimities in the form of loss of pain and temperature sensations with touch and vibration being intact.", 'role': 'assistant'}]