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
The pathognomonic finding in miliary TB is which of the following? 
Select and explain. 
A. Bone marrow infiltrations, B. Choroid tubercles, C. Miliary mottling in chest X-Ray, D. Histological finding in liver biopsy
B: Choroid tubercles
Answer: B: Choroid tubercles 
Explanation: 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