Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ at ___ are submitted .
    OUTPUT:
    
The heart is mildly enlarged . The aorta is unfolded and tortuous . There are scattered calcified pleural and diaphragmatic plaques consistent with prior asbestos exposure . No interstitial abnormality is appreciated to suggest asbestosis ; however , if this is of clinical concern , dedicated chest CT would be more sensitive . The patient is status post median sternotomy with no evidence of a mechanical valve suggesting that a porcine valve is in place . Lungs are hyperinflated suggesting underlying emphysema . More focal rounded nodular opacities in the left mid lung and right apex may reflect granulomata or pleural calcifications . No focal airspace consolidation is seen to suggest pneumonia . No pulmonary edema , pleural effusions or pneumothorax . Mild vertebral compression fracture one of the lower thoracic vertebrae , the chronicity of which can not be determined on this single radiograph . Bones are osteopenic .