Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged but unchanged . Mediastinal and hilar contours are stable . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormality is identified .
    OUTPUT:
    
Unchanged mild cardiomegaly . Otherwise no evidence of congestive heart failure or pneumonia .