Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . The patient is status post median sternotomy and aortic valve replacement . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Cardiac silhouette is top normal . The aorta is slightly tortuous . No overt pulmonary edema is seen . Minimal degenerative change is seen at the right acromioclavicular joint . No displaced fracture is identified .
    OUTPUT:
    
No evidence of acute intrathoracic injury .