Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Heart size and cardiomediastinal contours are normal . Left upper lobe lesion containing a fiducial marker appears similar to prior . There is slightly increased density of the left lower lobe which may represent aspiration or developing pneumonia . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Increased left lower lobe density , representing either aspiration or developing pneumonia . 2 . Stable radiographic appearance of left upper lobe lesion . Final impression was communicated via phone call by Dr . ___ to Dr . ___ ___ on ___ at ___ AM .