Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Indistinct pulmonary vascular markings are seen suggesting pulmonary edema , which is new since last month 's exam . Cardiomediastinal silhouette is somewhat accentuated by lower lung volumes on today 's study and is slightly enlarged but given lower lung volumes and rotation to the left , there is no definite significant change . Atherosclerotic calcifications noted at the aortic arch . Old anterior right rib fractures are noted involving the sixth and seventh ribs . Right shoulder arthroplasty changes are identified .
    OUTPUT:
    
Mild pulmonary vascular congestion , without definite focal consolidation .