Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 07 :34 is submitted .
    OUTPUT:
    
Patchy bibasilar opacities are again seen which could reflect areas of chronic scarring or atelectasis , although superimposed pneumonia or aspiration can not be entirely excluded . If the patient 's symptoms persist , followup imaging should be considered . No evidence of pulmonary edema . No pneumothorax . The face mask obscures the lung apices . Overall cardiac and mediastinal contours are stable given patient rotation . No pleural effusions .