Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . During the examination interval , the previously present pig - tail end drainage catheter on the right base has been removed . No pneumothorax has developed . Some small amount of pleural effusion blunts the lateral pleural sinus and results in some hazy appearance of the right lung base , but the amount of fluid is not likely to have increased significantly . On the left base , the amount of pleural effusion appears stable . No new parenchymal abnormalities are identified .
    OUTPUT:
    
No pneumothorax following chest tube removal on right side . No significant interval change in amount of pleural effusions .