Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Right IJ access dialysis catheter noted with tip in the region of the right atrium / cavoatrial junction . The heart remains mildly enlarged . Mild hilar congestion noted without frank pulmonary edema . No large effusion or pneumothorax . Bony structures are intact . There is moderate volume free intra peritoneal air noted in the upper abdomen which may be related to recently placed peritoneal dialysis catheter , though clinical correlation is advised .
    OUTPUT:
    
1 . Mild cardiomegaly with hilar congestion . 2 . Pneumoperitoneum , possibly due to peritoneal dialysis catheter though clinical correlation is advised .