Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . This patient is known to have metastatic renal cell cancer with extensive involvement of the right hemithorax . There is extensive pleural nodularity as seen on prior CT , involving the right lung . Also noted is opacity within the right lower lobe , which could represent compressive atelectasis versus pneumonia . Small effusion is also likely present on the right . The left lung is clear .
    OUTPUT:
    
Extensive right pleural nodularity compatible with known metastatic RCC . Slight increase in airspace opacity in the right lower lobe could represent atelectasis or pneumonia .