Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to ___ study the cardiomediastinal silhouette is stable . The hila and pleura are unremarkable . Again seen are multiple left - sided rib fractures and a displaced left clavicular fracture . There is a line along right apical lung which could represent a small pneumothorax though likely could be a finding secondary to displaced rib fragments . There is left basilar atelectasis with overlying opacity which could represent developing superimposed pneumonia in the right clinical setting .
    OUTPUT:
    
1 . Stable left rib and displaced clavicular fractures with possible adjacent pneumothorax . 2 . Increased left basilar atelectasis with concern for developing superimposed pneumonia of the left lower lobe .