Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . Compared to the prior study , mild hyperinflation of the lungs and flattened hemidiaphragms is unchanged . The lung fields are clear and there is no evidence of vascular congestion , pleural effusion , or pneumothorax . The cardiac and mediastinal silhouettes are normal . There are no concerning osseous or soft tissue abnormalities .
    OUTPUT:
    
Unchanged mild hyperinflation .