Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been reduction and persistence of right middle lobe atelectasis . The lungs are well inflated bilaterally with no areas of focal consolidation , pleural effusion , mass lesions or evidence of pneumothorax . There is no pulmonary edema . The cardiomediastinal silhouette is within normal limits . The pleural surfaces are unremarkable .
    OUTPUT:
    
Persistent but significantly reduced right middle lobe atelectasis . No evidence of pulmonary edema or infection .