Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate sized right pleural effusion is relatively unchanged in size compared to the prior exam . Adjacent opacification within the right lung base likely reflects atelectasis though infection can not be completely excluded , and the degree of opacification has slightly worsened compared to the prior exam . Irregular nodular pleural thickening on the right extends to the lung apex and appears progressed in the interval . Multiple left lung nodules are again demonstrated , better seen on the prior CT , compatible with metastases . There is no left - sided pleural effusion , new focal consolidation , or pneumothorax identified . The cardiac , mediastinal and hilar contours are unchanged although the cardiac silhouette size is difficult to assess given the presence of the right - sided pleural effusion . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Unchanged moderate sized right pleural effusion . Nodular pleural thickening in the right hemithorax appears progressed in the interval and likely reflects worsening pleural metastases . 2 . Right basilar opacification likely reflects atelectasis though infection is difficult to exclude , and appears minimally worse when compared to the prior exam . 3 . Relatively unchanged left lung pulmonary nodules , compatible with metastases .