Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Analysis performed in direct comparison with the next preceding similar study obtained nine hours earlier during the same day . The extensive parenchymal density occupying major portion of the left upper lobe and mid lung field on this portable chest examination remains rather unchanged in comparison with the next preceding examination obtained 10 hours earlier . Cardiac enlargement as before . Moderate pulmonary congestion , but no evidence of central pulmonary edema . In comparison with the first PA and lateral chest examination of ___ , the day of patient 's admission , at that time identified pneumonic infiltrate persists and has further increased . In addition , there are now some bilateral basal infiltrates and the left basal thorax demonstrates radiographic evidence of pleural effusion . There is no evidence of pneumothorax in the apical area .
    OUTPUT:
    
Persistent and expanding pneumonic infiltrates in this elderly gentleman .