Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires and mediastinal clips are again noted . There are small bilateral pleural effusions , similar to prior exam . No signs of edema or pneumonia . Cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
Small bilateral pleural effusions , similar to prior .