Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The patient is status post sternotomy and previous bypass surgery as before . The lungs are well expanded and clear . There is no focal consolidation , pleural effusion , or pneumothorax . There is slight elevation of the left hemidiaphragm , unchanged from prior examination .
    OUTPUT:
    
No radiographic evidence of an acute cardiopulmonary process . These findings were discussed with Dr . ___ by Dr . ___ via telephone on ___ at 11 :50 a .m . , time of discovery .