Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is unremarkable and unchanged since the prior examination . The pulmonary vasculature is mildly indistinct with cephalization . The bilateral hila are mildly prominent , though no definite consolidation is identified . Midline sternal wires are well aligned and intact . A cardiac stent is noted . There has been prior valve replacement . Right - sided pacemaker leads are unchanged . There is no pleural effusion or pneumothorax . Linear atelectasis is noted .
    OUTPUT:
    
1 . Indistinctness of the pulmonary vasculature with cephalization is suggestive of mild pulmonary edema . 2 . No definite osseous metastases identified .