Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright view of the dated ___ at 05 :30 is submitted .
    OUTPUT:
    
Single lead left - sided pacer remains in place . A left internal jugular central line has its tip in the distal brachiocephalic vein near its junction with the SVC . There is improved aeration at the right lung apex but persistent consolidation in the right mid and lower lung with probable associated layering effusion . In addition , there is persistent retrocardiac consolidation with an associated effusion . The pulmonary edema has improved . Findings are most consistent with atelectasis , aspiration or pneumonia . Clinical correlation is advised . Heart remains stably enlarged . No pneumothorax .