Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is normal . The mediastinal contours are unchanged , with mild tortuosity of thoracic aorta . A new ill - defined opacity is noted within the right lower lobe concerning for infection though atelectasis can not be completely excluded . Linear atelectasis is also noted within the left lower lobe . Calcified granulomas are seen in both lungs . No pleural effusion or pneumothorax is visualized . No acute osseous abnormality is seen .
    OUTPUT:
    
New ill - defined opacity in the right lower lobe concerning for infection , though atelectasis is also in the differential . Subsegmental atelectasis in left lower lobe is also noted .