Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of the previously placed left - sided PICC line . The heart size and mediastinal contours are within normal limits . The lungs are clear . There is no large pneumothorax and subtle blunting of the left costophrenic angle may represent pleural thickening , especially given the lateral rib irregularities of the left hemithorax , compatible with prior old / healed rib fractures .
    OUTPUT:
    
No radiographic evidence of pneumonia .