Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior study , there is marked interval change with obscuration of the right lung base . There appears to be a large effusion on the lateral film and there is atelectasis in the right lung base . There is added density in the region of the right hila which could represent atelectasis , adenopathy or mass . There is a gas density in the right lower chest which could represent lung or possibly subdiaphragmatic air or bowel . I would recommend a right - side - up decubitus film to evaluate for pneumoperitoneum or pneumothorax . There is blunting of the left CP suggesting small effusion . There is no CHF . Degenerative changes are present in the spine .
    OUTPUT:
    
There is obscuration of the right lung base and there appears to be a large effusion present and adjacent atelectasis . There is added density in the region of the right hila which could represent atelectasis , adenopathy or mass . A right - side - up lateral decubitus exam is recommended to evaluate for the possibility of subdiaphragmatic gas or pneumothorax . These findings were discussed with Dr . ___ in the emergency room .