Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 01 : 14 is submitted .
    OUTPUT:
    
Lung volumes remain low . There is increasing consolidation in the retrocardiac region which is likely associated with a layering effusion . Although these findings could represent compressive atelectasis of the left lower low , pneumonia or aspiration should also be considered in the correct clinical setting . Patchy opacity at the right base is stable favoring atelectasis . No pulmonary edema or pneumothorax . Overall cardiac and mediastinal contours are unchanged .