Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small left pleural effusion with overlying atelectasis , left base consolidation may also be present . Overall , the lung volumes are low . Trace right pleural effusion is difficult to exclude . Areas of opacity projecting over the lung fields , left greater than right , projecting over the ribs , may be osseous versus pulmonary in nature . Correlate with history of malignancy or infection , trauma . The cardiac silhouette is mildly enlarged . The aorta is tortuous . No overt pulmonary edema is seen . There is no evidence of pneumothorax . Multiple left - sided rib fractures are seen , involving at least the left lateral ___ , ___ , ___ , 10th rib , with evidence of some callus formation , indicating that they are subacute . There is also evidence of callous formation along multiple lateral right - sided ribs , including the right lateral ___ , ___ , ___ , ___ , ___ , and possibly 2nd ribs .
    OUTPUT:
    
Left base opacity may represent combination of small left pleural effusion with overlying atelectasis . Difficult to exclude trace right pleural effusion . There is increased opacity projecting over the lung fields bilateral left greater than right , also project over the ostia structures / ribs , difficult to discern whether osseous in nature or pulmonary . Correlate with history of malignancy or infection or trauma . Multiple bilateral rib fractures with evidence of callous formation , suggesting they are subacute .