Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Linear calcifications projecting over the right lung apex which may be vascular , stable since prior study . Battery pack again overlies the left mid hemithorax . Evidence of prior left - sided rib fractures are again seen .
    OUTPUT:
    
No acute cardiopulmonary process .