Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle relatively linear left lower lobe opacities are seen and although this is not a focal consolidation and are not obviously apparent on the lateral view , an early pneumonia should be considered given the history . Increased vascularity in the right lower lobe is stable compared to the prior exam . Cardiac size and hilar contours are unremarkable . No pleural effusion or pneumothorax .
    OUTPUT:
    
Possible early pneumonia in the left lower lobe .