Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear left lower lobe atelectasis is noted . There is no evidence of focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within below the diaphragm beneath the diaphragm .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .