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Radiology · Chest and cardiac imaging: bronchiectasis in cystic fibrosis
Sample itemA 12-year-old has recurrent chest infections and steatorrhoea. HRCT shows bronchiectasis with mucus plugging. Where does it predominate?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Upper zones
Cystic fibrosis bronchiectasis is typically upper-lobe predominant with mucus plugging and air trapping. Lower zone disease is more usual after infection or in immunodeficiency.
Option by option
A. Right middle lobe and lingula only
Isolated middle lobe and lingular disease is the pattern in non-tuberculous mycobacterial infection (Lady Windermere).
B. Upper zones (correct)
Correct. Upper-zone predominance is characteristic of cystic fibrosis.
C. Peripheral subpleural bases
Peripheral basal bronchiectasis with reticulation is traction bronchiectasis in fibrosis.
D. Lower zones
Basal predominance is more typical of post-infective disease and primary ciliary dyskinesia.
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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