Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As before , a right Port - A - Cath ends in the low SVC . Linear lucency along the left heart border seen on the prior radiograph from earlier today is less conspicuous on the present study . There is minimal bibasilar atelectasis , not significantly changed . A small left pleural effusion is not excluded . There is no right pleural effusion . No pneumothorax is seen . Mild cardiomegaly is unchanged . The mediastinal contours are normal .
    OUTPUT:
    
1 . No definite pneumomediastinum or pneumothorax . Previously seen lucency along the left heart border is less conspicuous on the present study . 2 . Unchanged minimal bibasilar atelectasis . 3 . Unchanged mild cardiomegaly .