Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes . Mild pulmonary edema is seen . No definite focal consolidation is seen . There may be trace pleural effusions posteriorly , but no large pleural effusion is seen . Cardiac and mediastinal silhouettes are stable . .
    OUTPUT:
    
Low lung volumes and mild pulmonary edema . No focal consolidation to suggest pneumonia . Possible trace pleural effusions but no large pleural effusion .