Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are improved . There is streaky density bilaterally consistent with subsegmental atelectasis or scarring . The lungs appear otherwise clear . The heart and mediastinal structures are unremarkable for technique . The patient has been extubated .
    OUTPUT:
    
Bilateral subsegmental atelectasis or scarring . No focal consolidation .