Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but clear . There may be trace bilateral pleural effusions , unchanged from prior exam . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable . Moderate comparison deformity of a mid thoracic vertebral body is unchanged from prior exam . Anterior right third , fourth and fifth rib fractures are chronic . No acute displaced fracture is seen .
    OUTPUT:
    
Small bilateral pleural effusions . No other acute cardiopulmonary process .