Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest were acquired . As before , there is a right tunneled dialysis catheter , not significantly changed in position . The lungs are clear . Mild cardiomegaly is unchanged . The hila are stable . There are no pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
1 . Mild cardiomegaly . Otherwise , no acute cardiopulmonary process .