Figure 2. Abnormal transverse thin-section CT scans obtained in a 13-year-old boy with normal PFT results as follows: FEV1, 99 percentage predicted; FVC, 92 percentage predicted; FEV1/FVC ratio, 90%; and FEF25%-75%, 95 percentage predicted. Thin-section CT scores were as follows: Castile score, 22 (range, 0-92); Brody score, 17 (range, 0-100); Helbich score, 12 (range, 0-27); Santamaria score, 13 (range, 0-29); Bhalla score, 12 (range, 0-25). Left: Scan shows bronchiectasis with a diameter of the artery that was two to three times that of the artery at an intermediate location (1). Center: Scan shows cysts in the periphery of the lung (2), bronchiectasis with a diameter of the artery that was one to two times that of the artery at a central location (3), and mucus-plugged bronchus (4). Right: Scan shows cysts in the periphery of the lung (5).