Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette and hilar contours are normal . Heterogeneous , peribronchial densities are present in the right upper lung of unclear chronicity . There are multiple , scattered , calcified appearing nodules bilaterally as well as multiple areas of scarring . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Heterogeneous peribronchial densities in the right upper lung of unclear chronicity which may represent infection or a chronic fibrotic process . Comparison to recent examination , if available would be helpful . If there is no prior available , further evaluation can be obtained with dedicated chest CT . 2 . Scattered parenchymal scarring and calcified appearing nodules of varying sizes which is likely chronic . Comparison to prior examination for stability would be helpful . Results were discussed over the telephone with Dr . ___ by ___ ___ at 12 : 14 on ___ at time of initial review .