Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 13 29 is submitted .
    OUTPUT:
    
There is persistent right basilar opacity which would be concerning for pneumonia or aspiration . Streaky retrocardiac opacities could reflect atelectasis , although pneumonia should also be considered in this location as well . No evidence of pulmonary edema . No large effusions . No pneumothorax . Overall cardiac and mediastinal contours are stable with the heart being upper limits of normal in size given portable technique .