Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , resulting in bronchovascular crowding . Cardiac silhouette appears enlarged . The aorta is tortuous . Fluid is seen within the bilateral fissures . The hila appear indistinct . There is right upper lobe atelectasis . Previously seen opacity in the left mid lung appears improved . No acute displaced rib fractures .
    OUTPUT:
    
1 . Mild edema . 2 . No acute displaced rib fracture . If there is concern for rib fracture , recommend dedicated rib series with the BB marker placed in the region of pain .