Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiographs were obtained . The lungs are mildly hyperexpanded without focal consolidation , pleural effusion or pneumothorax . Opacity in the left upper lung could reflect overlap of the ___ rib end , ___ posterior rib and scapula however this is newly apparent . Heart and mediastinal contours are unremarkable with incomplete evaluation of thoracolumbar posterior fusion hardware .
    OUTPUT:
    
No acute intrathoracic process with left upper lung opacity , nodule versus superimposition of normal structures . Consider apical lordotic radiographs on a nonemergent basis to further assess .