Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right moderate pleural effusion has slightly increased since previous exam with compressive atelectasis . In the aerated portion of the lung , there is no evidence of pneumonia . The lung volumes are low . Mediastinal and cardiac contours are unremarkable . There is no pneumothorax .
    OUTPUT:
    
1 . Right moderate pleural effusion has increased since previous exam with compressive atelectasis . 2 . The aerated portion of the lungs shows no evidence of pneumonia .