Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large area of consolidation is seen involving the left mid to lower lung and possibly portion of the inferior left upper lobe . Given patient history , findings are concerning for mass of aspiration . Alternatively , patient could have underlying infection . The right lung is clear . No pleural effusion or pneumothorax is seen . Cardiac silhouette is top - normal . The aorta is calcified . Mediastinal contours are unremarkable . Multiple old left - sided rib fractures are seen . Anchor screws are noted over the right humeral head .
    OUTPUT:
    
Large area of opacity over the left lung , predominantly involving the left mid to lower lung , most confluent at the left lung base ; given reported clinical history , findings are concerning for massive left - sided aspiration . Alternatively , underlying infection could be present , less likely pulmonary hemorrhage .