Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiac enlargement is unchanged over multiple prior studies . Mitral annular calcifications and aortic knob calcifications are again noted . Cephalization of the vasculature is relatively unchanged since ___ . No focal consolidation , pleural effusion or pneumothorax is identified .
    OUTPUT:
    
No focal consolidation concerning for pneumonia . Mild pulmonary vascular prominence appears similar since ___ .