Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided PICC line tip the is not visualized due to overlap of the pacer wires . Dual lead pacemaker is in similar position . The patient has had prior sternotomy and aortic valve repair . The lungs are clear , no interstitial edema or consolidation . The cardiomediastinal silhouette is not enlarged . No pleural effusions or pneumothorax .
    OUTPUT:
    
No radiographic evidence of acute intrathoracic disease .