Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a similar pattern of linear density in the right perihilar region which may represent a focus of scarring . No convincing evidence for pneumonia or edema . No large effusion or pneumothorax . The heart size is normal . The mediastinal contour is prominent which could be due to an unfolded thoracic aorta . Imaged osseous structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Right perihilar linear density likely represents scarring . No acute findings .