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': 'The pathognomonic finding in miliary TB is which of the following? \nSelect and explain. \nA. Bone marrow infiltrations, B. Choroid tubercles, C. Miliary mottling in chest X-Ray, D. Histological finding in liver biopsy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Eye examination may reveal choroidal tubercles, which are pathognomonic of miliary TB, seen in up to 30% of cases. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 1349', 'role': 'assistant'}]