Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient 's overlying arm on the lateral view partially obscures the view and makes evaluation of the lateral view suboptimal . Left greater than right biapical scarring is noted . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Multiple surgical clips are noted overlying the left hemi thorax and the left axilla . Difficult to assess for medial left clavicular injury , nondisplaced fracture not excluded .
    OUTPUT:
    
The patient 's overlying arm on the lateral view partially obscures the view and makes evaluation of the lateral view suboptimal . Left greater than right biapical scarring . Difficult to assess for medial left clavicular injury , nondisplaced fracture may be present .