Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains moderately enlarged . Mediastinal and hilar contours are similar with atherosclerotic calcifications noted at the aortic knob . Upper zone vascular redistribution with vascular indistinctness is compatible with mild pulmonary edema , not substantially changed from the previous exam . Patchy bibasilar atelectasis is noted . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary edema with bibasilar atelectasis .