Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . There is mild prominence of interstitial opacities in the lower lungs bilaterally , greater on the left than right , and perhaps better demonstrated on the lateral than frontal view .
    OUTPUT:
    
Reticulation and peribronchial cuffing which could be seen with lower airway inflammation or infection . Atypical pneumonia should also be considered .