Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . There has been interval removal of the right PICC . Again seen are opacities in the left base , improved compared to ___ . This is likely due to a large left pleural effusion , probable superimposed atelectasis . A new opacity is seen in the lateral right base , concerning for pneumonia . A left apical cavitary lesion is unchanged . No pneumothorax is seen .
    OUTPUT:
    
1 . New opacity in the lateral right lung base , concerning for pneumonia or aspiration . 2 . Persistent opacity in the left lung base , likely due to a combination of pleural effusion and superimposed atelectasis .