<prompt> Long term complications of bronchopulmonary dysplasia are all except :Decreased FRCSmall airway diseaseLarge airway diseaseInterstitial lung disease  <response>: Large airway disease Bronchopulmonary dysplasia is clinically diagnosed in neonate 32 weeks of gestation who requires at least 28 days of oxygen therapy. It is now infrequent in infants 1200 gm of bih weight gestation 30 wks. Histology : Airway epithelial hyperplasia Squamous metaplasia Alveolar wall thickening Small airway disease Peribronchial or interstitial fibrosis Major abnormality in new BPD is decrease in alveolar number alveolar hypoplasia which will definitely reduce FRC. Thus we are left with c large airway disease as answer of exclusion. 