Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable low lung volume seen bilaterally , with bronchovascular crowding and hilar prominence , but no evidence of pleural effusion , focal consolidations , or pneumothorax . Also seen is stable severe thoracic kyphosis with associated stable degenerative changes in the thoracic spine . No acute abnormalities are seen . There is no gross evidence of rib abnormalities and the appearance of the sternum is unchanged as compared to previous several studies .
    OUTPUT:
    
No evidence of acute fracture . If sternal symptoms persist , recommendation is made to further evaluate with CT .