Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild blunting of the right lateral and posterior costophrenic angles which may be due to trace right - sided effusion . The lungs are clear , there is no pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Possible trace right - sided effusion . Otherwise comment no acute cardiopulmonary process .