Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 17 : 24 is submitted .
    OUTPUT:
    
Interval removal of left PICC line . Overall cardiac and mediastinal contours are stable . Lungs appear slightly diminished in volume with patchy opacity at the right base more likely reflecting atelectasis , although pneumonia or aspiration should also be considered . No pulmonary edema . No evidence of pneumothorax or pneumomediastinum .