Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left hemidiaphragm is chronically elevated with mild superimposed atelectatic changes . There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . Chronic left hemidiaphragm elevation . 2 . No evidence of acute cardiopulmonary process .