Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal and hilar contours are unremarkable otherwise . There is no pleural effusion or pneumothorax . Deformities of multiple posterior ribs bilaterally are unchanged from prior exam and suggest healed old fractures . There is also a stable wedging deformity of a mid thoracic vertebrae which is also unchanged compared with ___ .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Old healed fractures of the posterior rib as well as the compression fracture of the mid thoracic vertebrae are unchanged since ___ . Left upper lobe mass adjacent to aortic knob is better seen in subsequent CT .