Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates interval worsening of right upper lung opacity previously seen on prior radiographs . There is no evidence of pneumothorax , hemothorax or other pleural effusion . The cardiomediastinal silhouette is unchanged from the prior study . The left lung is grossly clear .
    OUTPUT:
    
Interval worsening of right upper lobe opacification which could be due to worsening post-obstructive pneumonia or hematoma status post recent procedure . There is no evidence of pneumothorax or hemothorax . A preliminary report was issued by Dr . ___ on ___ at the time of discovery .