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©2013 UpToDate ® Print Email Chest radiograph of an adult patient with cystic fibrosis Chest radiograph shows a typical bronchial pattern with marked hyperexpansion, upper lobe bronchiectases with mucoid impactions, retraction of both hilar regions cephalad due to scarring, and pulmonary arterial hypertension with dilatation of both central pulmonary arteries. Courtesy of Paul Stark, MD. Normal chest radiograph Posteroanterior view of a normal chest radiograph. Courtesy of Carol M Black, MD.