Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph is obtained . Evaluation is somewhat limited given the underpenetrated technique . There is stable prominence of the right hilar structures with slight upward retraction of the right hila again noted . A small right effusion is again noted . Mild congestion is difficult to exclude . The heart is top normal in size . Bony structures appear intact .
    OUTPUT:
    
Stable prominence and upward retraction of the right pulmonary hilum in this patient with known lung cancer . Right pleural effusion and probable mild interstitial edema .