<unk>  often resolves gradually and may take 2–3 weeks. For longer durations of<unk>  the length of time of mechanical ventilation needed may increase and the incidence of bronchopulmonary dysplasia becomes higher. Some infants may develop chronic lobar<unk> , which may require surgical lobectomies.
Pulmonary interstitial emphysema
Pulmonary alveolar microlithiasis
Focal lung pneumatosis
Pulmonary consolidation
Interstitial lung disease
Pulmonary hyalinizing granuloma
Lymphocytic interstitial pneumonia
Pulmonary infiltrate