Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . Interstitial markings maybe more prominent due to low lung volumes however , there may be mild interstitial edema . No large pleural effusion is seen although trace pleural effusion would be difficult to exclude . The cardiac silhouette is mild . Mediastinal contours are stable . Left - sided AICD is similar in position .
    OUTPUT:
    
Low lung volumes which accentuate the bronchovascular markings . Given this , there may be mild interstitial edema . No lobar consolidation seen . Cardiomegaly .