Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . Bilateral streaky linear perihilar opacities are compatible with reactive airway disease , progressed since ___ and similar to ___ . The lungs are otherwise clear . No lobar consolidation , pleural effusion , or pneumothorax . The osseous structures are unremarkable . No radiopaque foreign bodies .
    OUTPUT:
    
Bilateral streaky perihilar opacities , compatible with reactive airway disease , similar to ___ though progressed since ___ .