Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding , bibasilar atelectasis , and artificial enlargement of the cardiac silhouette . There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . An accessed left pectoral Port - A - Cath catheter tip terminates in the low SVC . Mid thoracic compression fractures are unchanged .
    OUTPUT:
    
Low lung volumes . No evidence of acute cardiopulmonary process .