Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . There is no focal consolidation , pleural effusion or pneumothorax . There is mild cardiomegaly and the aorta appears enlarged . Degenerative changes of the thoracic spine are again seen with bridging anterior osteophytes .
    OUTPUT:
    
Low lung volumes . No acute cardiopulmonary process .