Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As on prior , there is elevation of the left hemidiaphragm with associated atelectasis at the left lung base . The lungs are clear without focal consolidation . Slight blunting of the right posterior costophrenic angle suggests tiny pleural effusion . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormalities . Surgical clips in the right upper quadrant suggest prior cholecystectomy .
    OUTPUT:
    
Possible tiny right pleural effusion . Otherwise no acute cardiopulmonary process .