Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear atelectasis is noted in the lingula . There is no lobar consolidation , pleural effusion , or pneumothorax identified . The cardiomediastinal silhouette is unchanged from the prior examination . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .