Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate right pleural effusion has increased in size since the post - thoracentesis radiograph of ___ at 10 : 15 a .m . It is now similar in size to the immediate pre-thoracentesis radiograph . Adjacent atelectasis has developed at the right lung base . Right apical parenchymal scarring appears similar to the prior study and may be due to previous radiation therapy . Apicolateral right pleural thickening is not appreciably changed , and its nodular quality is seen to better detail on prior CT torso . Cardiomediastinal contours are stable in appearance . No acute skeletal abnormalities .
    OUTPUT:
    
Increase in right pleural effusion , now moderate in size .