Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right basilar opacity persists compared to previous chest radiographs This is consistent with small layering pleural effusion and is unchanged . The left costophrenic angle remains blunted , which is consistent with previous history of left decortication . Otherwise , no focal consolidation , pulmonary edema , or pneumothorax is seen . The cardiomediastinal contours are unchanged . Median sternal wires are unchanged , and no bony abnormality is noted .
    OUTPUT:
    
Continued presence of small right pleural effusion .