Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chronic blunting of the right costophrenic angle likely represents a combination of atelectasis and moderate pleural effusion somewhat larger since ___ . The left lung appears unremarkable . The cardiomediastinal silhouette and hilar contours are stable . The aorta is tortuous . There are no focal airspace opacities to suggest pneumonia .
    OUTPUT:
    
Right lower lobe atelectasis and moderate right pleural effusion slightly increased since ___ .