Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged with left ventricular predominance . The aorta demonstrates diffuse atherosclerotic calcifications and is tortuous as seen previously . Hilar contours are similar . Pulmonary vasculature is not engorged . Streaky and patchy opacities in the bases are new from previous study which may reflect atelectasis though infection is not excluded . A trace left pleural effusion also appears new compared to the prior study . No pneumothorax is demonstrated . Remote left - sided rib fractures are again noted . Marked degenerative changes of both glenohumeral joints are present .
    OUTPUT:
    
Patchy and streaky opacities in the lung bases , possibly atelectasis but infection can not be excluded . Trace left pleural effusion .