Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are calcific densities projecting over the left lung base which are unchanged . Not definitively calcified right base pulmonary nodule is seen projecting over the posterior eighth rib . The lungs are otherwise clear with consolidation . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No definite acute cardiopulmonary process to explain patient 's symptoms . Right base pulmonary nodule may represent a nipple shadow however followup will be necessary .