Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated . There is no focal consolidation , effusion or pneumothorax . There is no pulmonary vascular congestion or pulmonary edema . Scarring in the left base is seen . Heart is somewhat obscured by overlying breast tissue . Within this limitation , mild cardiomegaly is unchanged . There is significant left convex scoliosis centered at the upper thoracic spine .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . No pulmonary vascular congestion or pulmonary edema . 3 . Unchanged mild cardiomegaly .