Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate size right pleural effusion appears slightly decreased in size compared to the previous radiograph , a component of which is loculated laterally as well as within the major fissure . Lateral spiculated nodular opacity within the right upper lobe remains grossly stable . Right basilar opacity likely reflecting combination of compressive atelectasis and tumor is not changed . Linear opacities within the right upper lobe may reflect scarring and are also not substantially changed , though lymphangitic spread of tumor can not be excluded . Cardiac and mediastinal contours are otherwise unchanged . The left lung demonstrates emphysematous changes without focal consolidation . Minimal blunting of the left costophrenic sulcus suggests a trace left pleural effusion . No pleural effusion or pneumothorax . No acute osseous abnormality is detected .
    OUTPUT:
    
Moderate size partially loculated right pleural effusion appears slightly decreased in size compared to the most recent radiograph . Continued compressive atelectasis with tumor in the right lung base and linear opacities in the right upper lobe , the latter of which may reflect fibrotic changes but lymphangitic spread of tumor is not excluded . Re - demonstration of spiculated nodular opacity within the lateral aspect of the right upper lobe . Trace left pleural effusion .