Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation , effusion , or edema . The cardiomediastinal silhouette is within normal limits . Postoperative changes of resection of the medial right clavicle and first rib are again noted . Callus formation seen at the anterior right second rib in the region of prior fracture .
    OUTPUT:
    
No acute cardiopulmonary process .