Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits . There are no increased interstitial markings to suggest amiodarone toxicity . Overall , there is little change from the prior study of ___ .
    OUTPUT:
    
1 . No evidence of amiodarone toxicity . 2 . Normal chest radiographs .