Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No nodule is seen . There is an opacity made by overlapping ribs in the right upper lung that is seen in previous radiographs . No focal consolidation , pleural effusion or pulmonary edema is seen , and the cardiac and mediastinal contours are unchanged . There is a left basilar atelectasis .
    OUTPUT:
    
No lung nodule seen .