Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright AP chest radiograph shows no interval improvement in bilateral airspace consolidations , worst in the left perihilar region . There may be some slight worsening at the right base laterally . There remains dense retrocardiac consolidation . No pneumothorax or definite pleural fluid is seen . Supporting lines and tubes are in unchanged position .
    OUTPUT:
    
No improvement , and possible slight worsening of bilateral alveolar consolidations , left greater than right .