Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest provided . The bilateral pulmonary hila appear symmetrically prominent which is of unclear etiology though could reflect the presence of lymphadenopathy . Consider dedicated PA and lateral views to further assess . Aside from this , the lungs are clear . The heart size is normal . Mediastinal contour is stable . No pneumothorax or effusion is seen . Bony structures are intact .
    OUTPUT:
    
Bilateral hilar prominence which could be better assessed with a dedicated PA and lateral view of the chest . Otherwise , unremarkable .