Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . There is fixation about the left mid clavicular fracture with long plate and multiple screws . Multiple displaced left rib fractures are again seen with some callus formation . There is improved aeration in bilateral lungs , especially at the left lung base . The previous left pleural effusion has resolved . No focal consolidation , pneumothorax , or pulmonary edema is seen . The heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
1 . Multiple displaced left rib fractures with some interval healing . 2 . Improved aeration of both lungs with interval resolution of left pleural effusion .