Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low limiting evaluation . There is pleural thickening along the lateral right mid lung . There is bibasilar atelectasis without convincing evidence for pneumonia . A retrocardiac opacity may reflect the presence of a hiatal hernia . The heart is mildly enlarged . No large effusion is seen . No pneumothorax . No edema or congestion . Bony structures are intact .
    OUTPUT:
    
Basilar atelectasis . Mild cardiomegaly . Possible small hiatal hernia .