Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left subclavian central line is present , tip over distal most SVC . No pneumothorax is detected . The cardiomediastinal silhouette is grossly unchanged . Compared with the prior study , opacification at the right base has progressed . Focal opacity in the left upper zone laterally , overlying the inferior left scapula , has also progressed . Faintbackground hazy opacities are again noted . It would be difficult to exclude a component of interstitial edema , but opacities related to infection might also account for this appearance . Minimal blunting the right costophrenic angle is new . Gross effusion identified .
    OUTPUT:
    
Worsening opacity at the right lung base and focally in the left upper zone laterally .