Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 13 :32 is submitted .
    OUTPUT:
    
A left pleural basilar pigtail catheter remains in place . There is persistent retrocardiac consolidation likely reflecting atelectasis , although pneumonia or aspiration can not be excluded . More patchy opacity at the right base is also unchanged . Lung volumes are slightly lower with crowding of the pulmonary vasculature but no overt pulmonary edema . No pneumothorax .