Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC line is in unchanged position in the low SVC . There apparent sternotomy drains or fixation devices unchanged from the prior study . Moderate cardiomegaly persists . Double contour of the right heart border suggests left atrial enlargement , unchanged . The lungs are grossly clear . There is likely small right pleural effusion layering in the posterior costophrenic sulcus . There is no pneumothorax . The mediastinal and hilar contours are normal . Within the limitations of routine chest radiography there is no evidence of acute osseous injury .
    OUTPUT:
    
1 . No evidence of acute traumatic injury . 2 . Small right pleural effusion 3 . Unchanged moderate cardiomegaly .