Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lateral left lower lung opacity seen on the frontal view , not substantiated on the lateral view , may be due to atelectasis , less likely infection . The lungs are hyperinflated . No pleural effusion or pneumothorax is seen . The cardiac silhouette is top - normal . The aorta is calcified and tortuous . No pulmonary edema is seen . There is levo thoracic scoliosis .
    OUTPUT:
    
Lateral left lower lung opacity on the frontal view , not substantiated on the lateral view , may be due to atelectasis , less likely infection .