Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is still a substantial right pleural effusion , which appears to be slightly worse compared to the prior radiograph of ___ . Adjacent atelectasis is unchanged in appearance . Within the remaining well - ventilated lung , there is no evidence of pneumonia . The left lung is essentially clear . There is no pneumothorax . Cardiomediastinal silhouette remains enlarged . The enteric tube is seen in the stomach , but the tip is not well visualized .
    OUTPUT:
    
1 . Slight interval worsening of substantial right pleural effusion since ___ . 2 . No evidence of pneumonia in the remaining regions of well - ventilated lung .