Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are unchanged compared to the prior study . There has been some improvement in aeration of the left mid lung , possibly due to clearing of pulmonary edema . There are persistent bilateral perihilar airspace opacities with prominence of the pulmonary vasculature consistent with pulmonary edema . Support and monitoring devices are unchanged in appearance compared to the prior study . No pneumothorax or pleural effusion seen . Calcified pleura at the left apex again noted .
    OUTPUT:
    
Rapid interval improvement in the consolidation in the left perihilar region suggests this may be clearing pulmonary edema .