Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pleural based opacity along the mid right lateral chest corresponds to that seen on recent prior PET - CT . There is blunting of the posterior right costophrenic angle consistent with small right pleural effusion with overlying atelectasis , underlying pleural lesion better assessed on CT . Prominence of the right hilum is similar to prior chest CT . No definite new focal consolidation . No evidence of pneumothorax . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Right lateral mid chest pleural based opacity corresponds to that seen on recent prior PET - CT . Small right pleural effusion with overlying atelectasis , underlying pleural lesion better assessed on CT .