Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . The heart size is unchanged . The same holds for the previously described right - sided Port - A - Cath system terminating with the line in the low SVC . No pneumothorax is identified . Comparison of the frontal views does not demonstrate any new parenchymal infiltrate . The lateral pleural sinuses remain free .
    OUTPUT:
    
No evidence of new infiltrate .