Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well - expanded with left lower lobe opacity only seen on frontal projection consistent with atelectasis . No pleural effusion . No pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the osseous structures is notable for a new mildly angulated right clavicular fracture . No displaced left clavicular fracture .
    OUTPUT:
    
1 . New mildly angulated right clavicular fracture . No displaced left clavicular fracture . 2 . Left lower lobe atelectasis . No definite pneumonia .