Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . Heart size is borderline enlarged . Patient is status post in sternotomy , the sternotomy wires which appear intact . Surgical clips are noted to the left of the midline . There is no pleural effusion or pneumothorax . Osseous structures demonstrate no acute abnormality . There is no pulmonary edema .
    OUTPUT:
    
No acute intrathoracic abnormality . Borderline enlarged heart , stable .