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General Medicine · Infectious diseases: choroid tubercles in miliary tuberculosis
Sample itemA 30-year-old man has 3 weeks of fever and weight loss. Chest radiograph shows innumerable 1 to 2 mm nodules scattered uniformly through both lungs. Which fundoscopic finding would support the diagnosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Choroid tubercles
Uniform millet-seed nodules suggest miliary tuberculosis from haematogenous spread. Pale yellow choroidal tubercles on fundoscopy provide supporting evidence and are seen in a proportion of patients.
Option by option
A. Papilloedema with flame haemorrhages
Papilloedema reflects raised intracranial pressure.
B. Cherry-red spot at the macula
A cherry-red spot occurs with central retinal artery occlusion and lysosomal storage diseases.
C. Choroid tubercles (correct)
Correct. Choroid tubercles are a recognised ocular sign of haematogenous tuberculosis.
D. Cotton wool spots with Roth spots
Roth spots are a feature of infective endocarditis and anaemia.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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