Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are decreased compared to the recent prior study . Mild interstitial pulmonary edema is difficult to exclude in the setting of low lung volumes . There is no pleural effusion or pneumothorax . Stable mild cardiomegaly is present . Again seen is prior evidence of right rotator cuff repair .
    OUTPUT:
    
Possible mild pulmonary edema . Low lung volumes limits evaluation .