Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , there has been interval improvement in increased interstitial markings bilaterally with prominence of the interstitial markings remaining , but to a lesser degree , may be due to very gradually improving process , as suggests an on prior chest CT from ___ ; possibly very gradually improving infectious with possible underlying cryptogenic organizing pneumonia . However , since the prior CT from ___ , today there appears to be increased blunting of the right costophrenic angle raising concern for a small right pleural effusion and possible pleural thickening . No left pleural effusion is seen . There is no evidence of pneumothorax . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Increased interstitial markings bilaterally , right slightly greater than left , which overall appear improved as compared to prior chest radiograph from ___ , as suggested on prior chest CT from ___ , findings may relate to a very gradually improving infectious process with possible underlying cryptogenic organizing pneumonia . New blunting of the right costophrenic angle raises concern for a small right pleural effusion and possible pleural thickening .