Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the right costophrenic angle may represent a small effusion . The lungs are clear without consolidation or edema . The cardiomediastinal silhouette is within normal limits . Surgical clip is noted in the left upper quadrant . No acute osseous abnormality .
    OUTPUT:
    
Possible trace right pleural effusion . Otherwise unremarkable chest x-ray .