Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a normal cardiomediastinal silhouette . Streaky opacities at the left lung base are consistent with atelectasis . The lungs are otherwise well aerated and clear . There is no pleural effusion or pneumothorax . Incidentally noted is an air distended esophagus .
    OUTPUT:
    
1 . Minimal left base atelectasis ; otherwise clear lungs . 2 . Incidentally noted air-distended esophagus .