Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear without confluent consolidation . No overt interstitial edema or pleural effusions are identified . There is a rightward position of mediastinal structures with relative hypoventilation of the right lung as compared to the left . Mild enlargement of the cardiac silhouette is noted . The inferior most sternal wire is fracture . No radiopaque prosthetic cardiac valve is evident .
    OUTPUT:
    
No acute cardiopulmonary process . No pulmonary edema . Dr . ___ communicated the above results to Dr . ___ at 9 : 29 am on ___ by telephone .