Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph is obtained . Cardiomediastinal silhouette is unchanged . Increased hazy opacification at the right base likely represents layering of the pleural effusion . Lungs are clear . No pulmonary edema . Small right pleural effusion ; no effusion on the left . No pneumothorax .
    OUTPUT:
    
Small right pleural effusion with no evidence of pulmonary vascular congestion .