Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The position of the AICD appears to be stable . Heart size is top normal . Trachea is midline and cardiomediastinal contours are unremarkable . The opacity within the left upper lobe corresponding to the primary lung malignancy is now more hazy and diffuse with corresponding loss of volume within the left upper lobe resulting in a slight upward shift of the left hilum . There is also an interval development of a left - sided moderate pleural effusion and compressive atelectasis . An overlying consolidation can not be ruled out . There is a slight worsening of the small patchy infiltrates within the right base compared to the prior study . No evidence of pneumothorax . Bony structures appear to be intact and there does not seem to be any evidence of bone destruction in the proximity of the primary malignancy .
    OUTPUT:
    
1 . Diffuse hazy changes of the known left upper opacity with volume loss . 2 . New moderate left - sided pleural effusion with evidence of compressive atelectasis . An overlying consolidation can not be excluded . In the proper clinical context , pneumonia could be considered .