Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate elevated right hemidiaphragm and a trace right pleural effusion . The lungs are clear . There is no pneumothorax . Mild aortic tortuosity is noted . The cardiomediastinal silhouette is unremarkable . Radiopaque coil overlies the upper thoracic spine .
    OUTPUT:
    
Trace right pleural effusion .