Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle . Mild enlargement cardiac silhouette is unchanged . The mediastinal and hilar contours are similar . There is no pulmonary edema . Lungs remain hyperinflated with minimal atelectasis in the lung bases . No focal consolidation or pneumothorax is seen . Minimal blunting of the right costophrenic angle is suggestive of a small right pleural effusion . Degenerative changes of both acromioclavicular and glenohumeral joints are again noted . The osseous structures are diffusely demineralized . Chronic fracture deformity of the left humeral surgical neck is again noted .
    OUTPUT:
    
Minimal blunting of the right costophrenic angle suggests a trace pleural effusion . Otherwise , no acute cardiopulmonary abnormality .