Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No abnormal right apical opacity is seen . Questionable finding on the prior study was likely due to overlap of structures . The lungs are unchanged and demonstrate evidence of chronic lung disease . Cardiac and mediastinal contours are unchanged . Again , the pulmonary nodules seen on the prior CT from ___ are too small to be appreciated on this study .
    OUTPUT:
    
No apical abnormalities . Questionable finding on the prior study may have been due to overlap of structures .