Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior study , the hila appear more congested with evidence of interstitial pulmonary edema and new small bilateral pleural effusions . There are persistent lower lung opacities , concerning for pneumonia . These have improved in the right lung base , but are stable to marginally worsened in the left lung base . No pneumothorax is identified .
    OUTPUT:
    
1 . Compared with the prior radiograph , there is new interstitial pulmonary edema and small bilateral pleural effusions . 2 . Persistent bilateral lower lung opacities concerning for multifocal pneumonia . These have improved in the right lung base , but are stable to marginally worsened in the left lung base .