Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtly increased density at the lung bases bilaterally on frontal view only likely represents atelectasis or early edema . No pleural effusion or pneumothorax is seen . Heart size is mildly enlarged . The aorta is tortuous . Biapical pleural scarring is seen . Density projecting posterior to the spine inferiorly on lateral view likely corresponds to subpleural fat , as seen on CT from ___ . No acute rib fracture is detected , but the sensitivity of routine radiography for rib fractures is low .
    OUTPUT:
    
Mild cardiomegaly with bibasilar edema versus atelectasis . Repeat radiograph with improved inspiration may helpful to distinguish these entities . Discussed with ___ by ___ by phone at 8 : 57 a .m . on ___ after attending radiologist review .