Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large gas - filled hiatal hernia is similar in appearance to chest radiograph from ___ . Severe cardiomegaly is stable ___ . A right PICC terminates in the region of the cavoatrial junction , unchanged from ___ . No pneumothorax . Opacities in the bilateral lower lungs likely represent combination of layering pleural and atelectasis .
    OUTPUT:
    
1 . Stable severe cardiomegaly from ___ . Stable large hiatal hernia from ___ . Bilateral layering pleural effusions and atelectasis . Difficult to exclude infection in the right clinical setting .