Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . Heterogeneous opacity at the left lung base is worrisome for pneumonia . There are scattered increased reticular lung markings and fibrotic changes particularly at the right lung base and right lung apex . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Left lower lobe pneumonia . A followup imaging for resolution should be obtained in five to six weeks . 2 . Increased reticular lung markings and scarring , particularly in the right lung apex and base for which followup imaging should be obtained . Results were discussed over the telephone with Dr . ___ by Dr . ___ at 3 :35 p .m . on ___ at time of initial review .