Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low leading to crowding of the bronchovascular structures . Mild bibasilar atelectasis is noted . There is no lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema identified . Mild cardiomegaly is noted .
    OUTPUT:
    
Low lung volumes , mild cardiomegaly , and bibasilar atelectasis .