Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior chest x-ray , the patient has apparently ingested a screw , which now overlies the left upper abdomen . The previously identified paper binder overlies the lower left abdomen . The cardiomediastinal contours are within normal limits . The bilateral hila are unremarkable . The lungs are clear without focal consolidation . There is no evidence of pulmonary vascular congestion . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Interval ingestion of a screw , now overlying the left upper abdomen . Re - demonstration of the previously ingested paper binder more inferiorly . 2 . No acute cardiopulmonary process