Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A known large hiatal hernia is smaller in size compared to most recent prior . Adjacent left lower lobe atelectasis is noted . There are bilateral small pleural effusions , similar to prior chest CT . A subcentimeter pulmonary nodule within the right lung base , seen on recent prior chest CT , is similar . There is no pulmonary vascular congestion or interstitial edema . No pneumothorax is evident . Cardiomediastinal and hilar contours are within normal limits and unchanged .
    OUTPUT:
    
1 . Large hiatal hernia is slightly smaller . Adjacent left lower lobe atelectasis is unchanged . 2 . Small bilateral pleural effusions , unchanged . 3 . Unchanged subcentimeter right lower lobe pulmonary nodule . No acute findings .