Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is stable with mild cardiomegaly . The hila and pleura are unremarkable . In comparison with ___ study mild pulmonary edema has stable . No new focal opacifications , pleural effusions , or pulmonary edema are seen .
    OUTPUT:
    
Stable mild pulmonary edema and no evidence of pneumonia .