Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . Lung volumes are low with bibasilar atelectasis . Heart and mediastinal contours are within normal limits within the limitations of a low lung volume study .
    OUTPUT:
    
Low lung volumes . No radiographic evidence for acute cardiopulmonary process .